copy project
Sascha
parent
8127e1ead4
commit
834f0845bd
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="VcsDirectoryMappings">
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<mapping directory="" vcs="Git" />
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</component>
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</project>
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# Default ignored files
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/shelf/
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/workspace.xml
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# Rider ignored files
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/.idea.project.iml
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/contentModel.xml
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/modules.xml
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/projectSettingsUpdater.xml
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# Editor-based HTTP Client requests
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/httpRequests/
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# Datasource local storage ignored files
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/dataSources/
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/dataSources.local.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="DataSourceManagerImpl" format="xml" multifile-model="true">
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<data-source source="LOCAL" name="eeao.db" uuid="d95dab00-6f4d-47f3-ab98-4b96ee53f77f">
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<driver-ref>sqlite.xerial</driver-ref>
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<synchronize>true</synchronize>
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<jdbc-driver>org.sqlite.JDBC</jdbc-driver>
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<jdbc-url>jdbc:sqlite:$PROJECT_DIR$/eeao.db</jdbc-url>
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<working-dir>$ProjectFileDir$</working-dir>
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</data-source>
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</component>
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</project>
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="UserContentModel">
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<attachedFolders />
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<explicitIncludes />
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<explicitExcludes />
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</component>
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</project>
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="Black">
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<option name="sdkName" value="Python 3.12 virtualenv at ~/coding/cs50/project/env" />
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</component>
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</project>
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="SqlDialectMappings">
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<file url="PROJECT" dialect="SQLite" />
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</component>
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</project>
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="VcsDirectoryMappings">
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<mapping directory="$PROJECT_DIR$/.." vcs="Git" />
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</component>
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</project>
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from cs50 import SQL
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from flask import Flask, flash, redirect, render_template, request, session
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from flask_session import Session
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from werkzeug.security import check_password_hash, generate_password_hash
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from helpers import apology, login_required
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# Configure application
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app = Flask(__name__)
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# Configure session to use filesystem (instead of signed cookies)
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app.config["SESSION_PERMANENT"] = False
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app.config["SESSION_TYPE"] = "filesystem"
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Session(app)
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# Configure CS50 Library to use SQLite database
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db = SQL("sqlite:///eeao.db")
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@app.after_request
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def after_request(response):
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"""Ensure responses aren't cached"""
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response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
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response.headers["Expires"] = 0
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response.headers["Pragma"] = "no-cache"
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return response
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@app.route("/")
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@login_required
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def index():
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# Get actual cash of the logged-in user
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user = db.execute("SELECT * FROM users WHERE id = ?", session["user_id"])
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return render_template("index.html", user=user[0])
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@app.route("/login", methods=["GET", "POST"])
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def login():
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"""Log user in"""
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# Forget any user_id
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session.clear()
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# User reached route via POST (as by submitting a form via POST)
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if request.method == "POST":
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# Ensure username was submitted
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if not request.form.get("username"):
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return apology("must provide username", 400)
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username = request.form.get("username")
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# Ensure password was submitted
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if not request.form.get("password"):
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return apology("must provide password", 400)
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password = request.form.get("password")
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# Query database for username
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rows = db.execute("SELECT * FROM users WHERE username = ?", username)
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# Ensure username exists and password is correct
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if len(rows) != 1 or not check_password_hash(rows[0]["hash"], password):
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return apology("invalid username and/or password", 400)
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# Remember which user has logged in
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session["user_id"] = rows[0]["id"]
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# Redirect user to home page
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return redirect("/")
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# User reached route via GET (as by clicking a link or via redirect)
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else:
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return render_template("login.html")
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@app.route("/logout")
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def logout():
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"""Log user out"""
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# Forget any user_id
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session.clear()
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# Redirect user to login form
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return redirect("/")
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@app.route("/register", methods=["GET", "POST"])
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def register():
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"""Register user"""
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# User reached route via POST (as by submitting a form via POST)
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if request.method == "POST":
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username = request.form.get("username")
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# Ensure username was submitted
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if not username:
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return apology("must provide username", 400)
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# Check if user already existing
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if db.execute("SELECT * FROM users WHERE username = ?", username):
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return apology("user already exists", 400)
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password = request.form.get("password")
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# Ensure password was submitted
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if not password:
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return apology("must provide password", 400)
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confirmation = request.form.get("confirmation")
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# Ensure password was submitted
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if not confirmation:
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# Query database for username
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return apology("must provide confirmation", 400)
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# Ensure password is identical with confirmation
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if password != confirmation:
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return apology("password and confirmation does not match", 400)
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# Add user to db
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password_hash = generate_password_hash(password)
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db.execute("INSERT INTO users (username, hash) VALUES(?, ?)", username, password_hash)
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# Redirect user to home page
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return redirect("/")
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# User reached route via GET (as by clicking a link or via redirect)
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else:
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return render_template("register.html")
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#!/home/sascha/coding/cs50/project/env/bin/python
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# -*- coding: utf-8 -*-
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import re
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import sys
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from flask.cli import main
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if __name__ == '__main__':
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
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sys.exit(main())
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#!/home/sascha/coding/cs50/project/env/bin/python
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# -*- coding: utf-8 -*-
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import re
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import sys
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from charset_normalizer.cli import cli_detect
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if __name__ == '__main__':
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
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sys.exit(cli_detect())
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#!/home/sascha/coding/cs50/project/env/bin/python
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# -*- coding: utf-8 -*-
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import re
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import sys
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from sqlparse.__main__ import main
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if __name__ == '__main__':
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
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sys.exit(main())
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#!/home/sascha/coding/cs50/project/env/bin/python
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# -*- coding: utf-8 -*-
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import re
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import sys
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from wheel.cli import main
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if __name__ == '__main__':
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
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sys.exit(main())
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/* -*- indent-tabs-mode: nil; tab-width: 4; -*- */
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/* Greenlet object interface */
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#ifndef Py_GREENLETOBJECT_H
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#define Py_GREENLETOBJECT_H
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#include <Python.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* This is deprecated and undocumented. It does not change. */
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#define GREENLET_VERSION "1.0.0"
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#ifndef GREENLET_MODULE
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#define implementation_ptr_t void*
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#endif
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typedef struct _greenlet {
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PyObject_HEAD
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PyObject* weakreflist;
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PyObject* dict;
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implementation_ptr_t pimpl;
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} PyGreenlet;
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#define PyGreenlet_Check(op) (op && PyObject_TypeCheck(op, &PyGreenlet_Type))
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/* C API functions */
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/* Total number of symbols that are exported */
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#define PyGreenlet_API_pointers 12
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#define PyGreenlet_Type_NUM 0
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#define PyExc_GreenletError_NUM 1
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#define PyExc_GreenletExit_NUM 2
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#define PyGreenlet_New_NUM 3
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#define PyGreenlet_GetCurrent_NUM 4
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#define PyGreenlet_Throw_NUM 5
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#define PyGreenlet_Switch_NUM 6
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#define PyGreenlet_SetParent_NUM 7
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#define PyGreenlet_MAIN_NUM 8
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#define PyGreenlet_STARTED_NUM 9
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#define PyGreenlet_ACTIVE_NUM 10
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#define PyGreenlet_GET_PARENT_NUM 11
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#ifndef GREENLET_MODULE
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/* This section is used by modules that uses the greenlet C API */
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static void** _PyGreenlet_API = NULL;
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# define PyGreenlet_Type \
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(*(PyTypeObject*)_PyGreenlet_API[PyGreenlet_Type_NUM])
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# define PyExc_GreenletError \
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((PyObject*)_PyGreenlet_API[PyExc_GreenletError_NUM])
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# define PyExc_GreenletExit \
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((PyObject*)_PyGreenlet_API[PyExc_GreenletExit_NUM])
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/*
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* PyGreenlet_New(PyObject *args)
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*
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* greenlet.greenlet(run, parent=None)
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*/
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# define PyGreenlet_New \
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(*(PyGreenlet * (*)(PyObject * run, PyGreenlet * parent)) \
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_PyGreenlet_API[PyGreenlet_New_NUM])
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/*
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* PyGreenlet_GetCurrent(void)
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*
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* greenlet.getcurrent()
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*/
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# define PyGreenlet_GetCurrent \
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(*(PyGreenlet * (*)(void)) _PyGreenlet_API[PyGreenlet_GetCurrent_NUM])
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/*
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* PyGreenlet_Throw(
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* PyGreenlet *greenlet,
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* PyObject *typ,
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* PyObject *val,
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* PyObject *tb)
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*
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* g.throw(...)
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*/
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# define PyGreenlet_Throw \
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(*(PyObject * (*)(PyGreenlet * self, \
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PyObject * typ, \
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PyObject * val, \
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PyObject * tb)) \
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_PyGreenlet_API[PyGreenlet_Throw_NUM])
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/*
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* PyGreenlet_Switch(PyGreenlet *greenlet, PyObject *args)
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*
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* g.switch(*args, **kwargs)
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*/
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# define PyGreenlet_Switch \
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(*(PyObject * \
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(*)(PyGreenlet * greenlet, PyObject * args, PyObject * kwargs)) \
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_PyGreenlet_API[PyGreenlet_Switch_NUM])
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/*
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* PyGreenlet_SetParent(PyObject *greenlet, PyObject *new_parent)
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*
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* g.parent = new_parent
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*/
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# define PyGreenlet_SetParent \
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(*(int (*)(PyGreenlet * greenlet, PyGreenlet * nparent)) \
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_PyGreenlet_API[PyGreenlet_SetParent_NUM])
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||||
|
||||
/*
|
||||
* PyGreenlet_GetParent(PyObject* greenlet)
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*
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||||
* return greenlet.parent;
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||||
*
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||||
* This could return NULL even if there is no exception active.
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||||
* If it does not return NULL, you are responsible for decrementing the
|
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* reference count.
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*/
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# define PyGreenlet_GetParent \
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(*(PyGreenlet* (*)(PyGreenlet*)) \
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_PyGreenlet_API[PyGreenlet_GET_PARENT_NUM])
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||||
/*
|
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* deprecated, undocumented alias.
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||||
*/
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||||
# define PyGreenlet_GET_PARENT PyGreenlet_GetParent
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# define PyGreenlet_MAIN \
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(*(int (*)(PyGreenlet*)) \
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_PyGreenlet_API[PyGreenlet_MAIN_NUM])
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# define PyGreenlet_STARTED \
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(*(int (*)(PyGreenlet*)) \
|
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_PyGreenlet_API[PyGreenlet_STARTED_NUM])
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||||
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# define PyGreenlet_ACTIVE \
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||||
(*(int (*)(PyGreenlet*)) \
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_PyGreenlet_API[PyGreenlet_ACTIVE_NUM])
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||||
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||||
|
||||
|
||||
|
||||
/* Macro that imports greenlet and initializes C API */
|
||||
/* NOTE: This has actually moved to ``greenlet._greenlet._C_API``, but we
|
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keep the older definition to be sure older code that might have a copy of
|
||||
the header still works. */
|
||||
# define PyGreenlet_Import() \
|
||||
{ \
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_PyGreenlet_API = (void**)PyCapsule_Import("greenlet._C_API", 0); \
|
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}
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||||
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||||
#endif /* GREENLET_MODULE */
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||||
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_GREENLETOBJECT_H */
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@ -0,0 +1 @@
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pip
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||||
@ -0,0 +1,28 @@
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Copyright 2010 Pallets
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
1. Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
2. Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
3. Neither the name of the copyright holder nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
|
||||
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
@ -0,0 +1,92 @@
|
||||
Metadata-Version: 2.1
|
||||
Name: MarkupSafe
|
||||
Version: 3.0.2
|
||||
Summary: Safely add untrusted strings to HTML/XML markup.
|
||||
Maintainer-email: Pallets <contact@palletsprojects.com>
|
||||
License: Copyright 2010 Pallets
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
1. Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
2. Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
3. Neither the name of the copyright holder nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
|
||||
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
Project-URL: Donate, https://palletsprojects.com/donate
|
||||
Project-URL: Documentation, https://markupsafe.palletsprojects.com/
|
||||
Project-URL: Changes, https://markupsafe.palletsprojects.com/changes/
|
||||
Project-URL: Source, https://github.com/pallets/markupsafe/
|
||||
Project-URL: Chat, https://discord.gg/pallets
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: Environment :: Web Environment
|
||||
Classifier: Intended Audience :: Developers
|
||||
Classifier: License :: OSI Approved :: BSD License
|
||||
Classifier: Operating System :: OS Independent
|
||||
Classifier: Programming Language :: Python
|
||||
Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content
|
||||
Classifier: Topic :: Text Processing :: Markup :: HTML
|
||||
Classifier: Typing :: Typed
|
||||
Requires-Python: >=3.9
|
||||
Description-Content-Type: text/markdown
|
||||
License-File: LICENSE.txt
|
||||
|
||||
# MarkupSafe
|
||||
|
||||
MarkupSafe implements a text object that escapes characters so it is
|
||||
safe to use in HTML and XML. Characters that have special meanings are
|
||||
replaced so that they display as the actual characters. This mitigates
|
||||
injection attacks, meaning untrusted user input can safely be displayed
|
||||
on a page.
|
||||
|
||||
|
||||
## Examples
|
||||
|
||||
```pycon
|
||||
>>> from markupsafe import Markup, escape
|
||||
|
||||
>>> # escape replaces special characters and wraps in Markup
|
||||
>>> escape("<script>alert(document.cookie);</script>")
|
||||
Markup('<script>alert(document.cookie);</script>')
|
||||
|
||||
>>> # wrap in Markup to mark text "safe" and prevent escaping
|
||||
>>> Markup("<strong>Hello</strong>")
|
||||
Markup('<strong>hello</strong>')
|
||||
|
||||
>>> escape(Markup("<strong>Hello</strong>"))
|
||||
Markup('<strong>hello</strong>')
|
||||
|
||||
>>> # Markup is a str subclass
|
||||
>>> # methods and operators escape their arguments
|
||||
>>> template = Markup("Hello <em>{name}</em>")
|
||||
>>> template.format(name='"World"')
|
||||
Markup('Hello <em>"World"</em>')
|
||||
```
|
||||
|
||||
## Donate
|
||||
|
||||
The Pallets organization develops and supports MarkupSafe and other
|
||||
popular packages. In order to grow the community of contributors and
|
||||
users, and allow the maintainers to devote more time to the projects,
|
||||
[please donate today][].
|
||||
|
||||
[please donate today]: https://palletsprojects.com/donate
|
||||
@ -0,0 +1,14 @@
|
||||
MarkupSafe-3.0.2.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
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MarkupSafe-3.0.2.dist-info/LICENSE.txt,sha256=SJqOEQhQntmKN7uYPhHg9-HTHwvY-Zp5yESOf_N9B-o,1475
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||||
markupsafe/__pycache__/_native.cpython-312.pyc,,
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||||
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||||
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|
||||
@ -0,0 +1,6 @@
|
||||
Wheel-Version: 1.0
|
||||
Generator: setuptools (75.2.0)
|
||||
Root-Is-Purelib: false
|
||||
Tag: cp312-cp312-manylinux_2_17_x86_64
|
||||
Tag: cp312-cp312-manylinux2014_x86_64
|
||||
|
||||
@ -0,0 +1 @@
|
||||
markupsafe
|
||||
@ -0,0 +1 @@
|
||||
pip
|
||||
@ -0,0 +1,19 @@
|
||||
Copyright 2005-2024 SQLAlchemy authors and contributors <see AUTHORS file>.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
||||
of the Software, and to permit persons to whom the Software is furnished to do
|
||||
so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
@ -0,0 +1,243 @@
|
||||
Metadata-Version: 2.1
|
||||
Name: SQLAlchemy
|
||||
Version: 2.0.36
|
||||
Summary: Database Abstraction Library
|
||||
Home-page: https://www.sqlalchemy.org
|
||||
Author: Mike Bayer
|
||||
Author-email: mike_mp@zzzcomputing.com
|
||||
License: MIT
|
||||
Project-URL: Documentation, https://docs.sqlalchemy.org
|
||||
Project-URL: Issue Tracker, https://github.com/sqlalchemy/sqlalchemy/
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: Intended Audience :: Developers
|
||||
Classifier: License :: OSI Approved :: MIT License
|
||||
Classifier: Operating System :: OS Independent
|
||||
Classifier: Programming Language :: Python
|
||||
Classifier: Programming Language :: Python :: 3
|
||||
Classifier: Programming Language :: Python :: 3.7
|
||||
Classifier: Programming Language :: Python :: 3.8
|
||||
Classifier: Programming Language :: Python :: 3.9
|
||||
Classifier: Programming Language :: Python :: 3.10
|
||||
Classifier: Programming Language :: Python :: 3.11
|
||||
Classifier: Programming Language :: Python :: 3.12
|
||||
Classifier: Programming Language :: Python :: 3.13
|
||||
Classifier: Programming Language :: Python :: Implementation :: CPython
|
||||
Classifier: Programming Language :: Python :: Implementation :: PyPy
|
||||
Classifier: Topic :: Database :: Front-Ends
|
||||
Requires-Python: >=3.7
|
||||
Description-Content-Type: text/x-rst
|
||||
License-File: LICENSE
|
||||
Requires-Dist: typing-extensions >=4.6.0
|
||||
Requires-Dist: greenlet !=0.4.17 ; python_version < "3.13" and (platform_machine == "aarch64" or (platform_machine == "ppc64le" or (platform_machine == "x86_64" or (platform_machine == "amd64" or (platform_machine == "AMD64" or (platform_machine == "win32" or platform_machine == "WIN32"))))))
|
||||
Requires-Dist: importlib-metadata ; python_version < "3.8"
|
||||
Provides-Extra: aiomysql
|
||||
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|
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|
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|
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|
||||
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||||
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|
||||
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|
||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
Provides-Extra: mypy
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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||||
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||||
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||||
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|
||||
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|
||||
|
||||
SQLAlchemy
|
||||
==========
|
||||
|
||||
|PyPI| |Python| |Downloads|
|
||||
|
||||
.. |PyPI| image:: https://img.shields.io/pypi/v/sqlalchemy
|
||||
:target: https://pypi.org/project/sqlalchemy
|
||||
:alt: PyPI
|
||||
|
||||
.. |Python| image:: https://img.shields.io/pypi/pyversions/sqlalchemy
|
||||
:target: https://pypi.org/project/sqlalchemy
|
||||
:alt: PyPI - Python Version
|
||||
|
||||
.. |Downloads| image:: https://static.pepy.tech/badge/sqlalchemy/month
|
||||
:target: https://pepy.tech/project/sqlalchemy
|
||||
:alt: PyPI - Downloads
|
||||
|
||||
|
||||
The Python SQL Toolkit and Object Relational Mapper
|
||||
|
||||
Introduction
|
||||
-------------
|
||||
|
||||
SQLAlchemy is the Python SQL toolkit and Object Relational Mapper
|
||||
that gives application developers the full power and
|
||||
flexibility of SQL. SQLAlchemy provides a full suite
|
||||
of well known enterprise-level persistence patterns,
|
||||
designed for efficient and high-performing database
|
||||
access, adapted into a simple and Pythonic domain
|
||||
language.
|
||||
|
||||
Major SQLAlchemy features include:
|
||||
|
||||
* An industrial strength ORM, built
|
||||
from the core on the identity map, unit of work,
|
||||
and data mapper patterns. These patterns
|
||||
allow transparent persistence of objects
|
||||
using a declarative configuration system.
|
||||
Domain models
|
||||
can be constructed and manipulated naturally,
|
||||
and changes are synchronized with the
|
||||
current transaction automatically.
|
||||
* A relationally-oriented query system, exposing
|
||||
the full range of SQL's capabilities
|
||||
explicitly, including joins, subqueries,
|
||||
correlation, and most everything else,
|
||||
in terms of the object model.
|
||||
Writing queries with the ORM uses the same
|
||||
techniques of relational composition you use
|
||||
when writing SQL. While you can drop into
|
||||
literal SQL at any time, it's virtually never
|
||||
needed.
|
||||
* A comprehensive and flexible system
|
||||
of eager loading for related collections and objects.
|
||||
Collections are cached within a session,
|
||||
and can be loaded on individual access, all
|
||||
at once using joins, or by query per collection
|
||||
across the full result set.
|
||||
* A Core SQL construction system and DBAPI
|
||||
interaction layer. The SQLAlchemy Core is
|
||||
separate from the ORM and is a full database
|
||||
abstraction layer in its own right, and includes
|
||||
an extensible Python-based SQL expression
|
||||
language, schema metadata, connection pooling,
|
||||
type coercion, and custom types.
|
||||
* All primary and foreign key constraints are
|
||||
assumed to be composite and natural. Surrogate
|
||||
integer primary keys are of course still the
|
||||
norm, but SQLAlchemy never assumes or hardcodes
|
||||
to this model.
|
||||
* Database introspection and generation. Database
|
||||
schemas can be "reflected" in one step into
|
||||
Python structures representing database metadata;
|
||||
those same structures can then generate
|
||||
CREATE statements right back out - all within
|
||||
the Core, independent of the ORM.
|
||||
|
||||
SQLAlchemy's philosophy:
|
||||
|
||||
* SQL databases behave less and less like object
|
||||
collections the more size and performance start to
|
||||
matter; object collections behave less and less like
|
||||
tables and rows the more abstraction starts to matter.
|
||||
SQLAlchemy aims to accommodate both of these
|
||||
principles.
|
||||
* An ORM doesn't need to hide the "R". A relational
|
||||
database provides rich, set-based functionality
|
||||
that should be fully exposed. SQLAlchemy's
|
||||
ORM provides an open-ended set of patterns
|
||||
that allow a developer to construct a custom
|
||||
mediation layer between a domain model and
|
||||
a relational schema, turning the so-called
|
||||
"object relational impedance" issue into
|
||||
a distant memory.
|
||||
* The developer, in all cases, makes all decisions
|
||||
regarding the design, structure, and naming conventions
|
||||
of both the object model as well as the relational
|
||||
schema. SQLAlchemy only provides the means
|
||||
to automate the execution of these decisions.
|
||||
* With SQLAlchemy, there's no such thing as
|
||||
"the ORM generated a bad query" - you
|
||||
retain full control over the structure of
|
||||
queries, including how joins are organized,
|
||||
how subqueries and correlation is used, what
|
||||
columns are requested. Everything SQLAlchemy
|
||||
does is ultimately the result of a developer-initiated
|
||||
decision.
|
||||
* Don't use an ORM if the problem doesn't need one.
|
||||
SQLAlchemy consists of a Core and separate ORM
|
||||
component. The Core offers a full SQL expression
|
||||
language that allows Pythonic construction
|
||||
of SQL constructs that render directly to SQL
|
||||
strings for a target database, returning
|
||||
result sets that are essentially enhanced DBAPI
|
||||
cursors.
|
||||
* Transactions should be the norm. With SQLAlchemy's
|
||||
ORM, nothing goes to permanent storage until
|
||||
commit() is called. SQLAlchemy encourages applications
|
||||
to create a consistent means of delineating
|
||||
the start and end of a series of operations.
|
||||
* Never render a literal value in a SQL statement.
|
||||
Bound parameters are used to the greatest degree
|
||||
possible, allowing query optimizers to cache
|
||||
query plans effectively and making SQL injection
|
||||
attacks a non-issue.
|
||||
|
||||
Documentation
|
||||
-------------
|
||||
|
||||
Latest documentation is at:
|
||||
|
||||
https://www.sqlalchemy.org/docs/
|
||||
|
||||
Installation / Requirements
|
||||
---------------------------
|
||||
|
||||
Full documentation for installation is at
|
||||
`Installation <https://www.sqlalchemy.org/docs/intro.html#installation>`_.
|
||||
|
||||
Getting Help / Development / Bug reporting
|
||||
------------------------------------------
|
||||
|
||||
Please refer to the `SQLAlchemy Community Guide <https://www.sqlalchemy.org/support.html>`_.
|
||||
|
||||
Code of Conduct
|
||||
---------------
|
||||
|
||||
Above all, SQLAlchemy places great emphasis on polite, thoughtful, and
|
||||
constructive communication between users and developers.
|
||||
Please see our current Code of Conduct at
|
||||
`Code of Conduct <https://www.sqlalchemy.org/codeofconduct.html>`_.
|
||||
|
||||
License
|
||||
-------
|
||||
|
||||
SQLAlchemy is distributed under the `MIT license
|
||||
<https://www.opensource.org/licenses/mit-license.php>`_.
|
||||
|
||||
@ -0,0 +1,529 @@
|
||||
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@ -0,0 +1,6 @@
|
||||
Wheel-Version: 1.0
|
||||
Generator: setuptools (75.1.0)
|
||||
Root-Is-Purelib: false
|
||||
Tag: cp312-cp312-manylinux_2_17_x86_64
|
||||
Tag: cp312-cp312-manylinux2014_x86_64
|
||||
|
||||
@ -0,0 +1 @@
|
||||
sqlalchemy
|
||||
Binary file not shown.
@ -0,0 +1 @@
|
||||
pip
|
||||
@ -0,0 +1,20 @@
|
||||
Copyright 2010 Jason Kirtland
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included
|
||||
in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||||
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||||
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
@ -0,0 +1,60 @@
|
||||
Metadata-Version: 2.3
|
||||
Name: blinker
|
||||
Version: 1.9.0
|
||||
Summary: Fast, simple object-to-object and broadcast signaling
|
||||
Author: Jason Kirtland
|
||||
Maintainer-email: Pallets Ecosystem <contact@palletsprojects.com>
|
||||
Requires-Python: >=3.9
|
||||
Description-Content-Type: text/markdown
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: License :: OSI Approved :: MIT License
|
||||
Classifier: Programming Language :: Python
|
||||
Classifier: Typing :: Typed
|
||||
Project-URL: Chat, https://discord.gg/pallets
|
||||
Project-URL: Documentation, https://blinker.readthedocs.io
|
||||
Project-URL: Source, https://github.com/pallets-eco/blinker/
|
||||
|
||||
# Blinker
|
||||
|
||||
Blinker provides a fast dispatching system that allows any number of
|
||||
interested parties to subscribe to events, or "signals".
|
||||
|
||||
|
||||
## Pallets Community Ecosystem
|
||||
|
||||
> [!IMPORTANT]\
|
||||
> This project is part of the Pallets Community Ecosystem. Pallets is the open
|
||||
> source organization that maintains Flask; Pallets-Eco enables community
|
||||
> maintenance of related projects. If you are interested in helping maintain
|
||||
> this project, please reach out on [the Pallets Discord server][discord].
|
||||
>
|
||||
> [discord]: https://discord.gg/pallets
|
||||
|
||||
|
||||
## Example
|
||||
|
||||
Signal receivers can subscribe to specific senders or receive signals
|
||||
sent by any sender.
|
||||
|
||||
```pycon
|
||||
>>> from blinker import signal
|
||||
>>> started = signal('round-started')
|
||||
>>> def each(round):
|
||||
... print(f"Round {round}")
|
||||
...
|
||||
>>> started.connect(each)
|
||||
|
||||
>>> def round_two(round):
|
||||
... print("This is round two.")
|
||||
...
|
||||
>>> started.connect(round_two, sender=2)
|
||||
|
||||
>>> for round in range(1, 4):
|
||||
... started.send(round)
|
||||
...
|
||||
Round 1!
|
||||
Round 2!
|
||||
This is round two.
|
||||
Round 3!
|
||||
```
|
||||
|
||||
@ -0,0 +1,12 @@
|
||||
blinker-1.9.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
|
||||
blinker-1.9.0.dist-info/LICENSE.txt,sha256=nrc6HzhZekqhcCXSrhvjg5Ykx5XphdTw6Xac4p-spGc,1054
|
||||
blinker-1.9.0.dist-info/METADATA,sha256=uIRiM8wjjbHkCtbCyTvctU37IAZk0kEe5kxAld1dvzA,1633
|
||||
blinker-1.9.0.dist-info/RECORD,,
|
||||
blinker-1.9.0.dist-info/WHEEL,sha256=CpUCUxeHQbRN5UGRQHYRJorO5Af-Qy_fHMctcQ8DSGI,82
|
||||
blinker/__init__.py,sha256=I2EdZqpy4LyjX17Hn1yzJGWCjeLaVaPzsMgHkLfj_cQ,317
|
||||
blinker/__pycache__/__init__.cpython-312.pyc,,
|
||||
blinker/__pycache__/_utilities.cpython-312.pyc,,
|
||||
blinker/__pycache__/base.cpython-312.pyc,,
|
||||
blinker/_utilities.py,sha256=0J7eeXXTUx0Ivf8asfpx0ycVkp0Eqfqnj117x2mYX9E,1675
|
||||
blinker/base.py,sha256=QpDuvXXcwJF49lUBcH5BiST46Rz9wSG7VW_p7N_027M,19132
|
||||
blinker/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
|
||||
@ -0,0 +1,4 @@
|
||||
Wheel-Version: 1.0
|
||||
Generator: flit 3.10.1
|
||||
Root-Is-Purelib: true
|
||||
Tag: py3-none-any
|
||||
@ -0,0 +1,17 @@
|
||||
from __future__ import annotations
|
||||
|
||||
from .base import ANY
|
||||
from .base import default_namespace
|
||||
from .base import NamedSignal
|
||||
from .base import Namespace
|
||||
from .base import Signal
|
||||
from .base import signal
|
||||
|
||||
__all__ = [
|
||||
"ANY",
|
||||
"default_namespace",
|
||||
"NamedSignal",
|
||||
"Namespace",
|
||||
"Signal",
|
||||
"signal",
|
||||
]
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -0,0 +1,64 @@
|
||||
from __future__ import annotations
|
||||
|
||||
import collections.abc as c
|
||||
import inspect
|
||||
import typing as t
|
||||
from weakref import ref
|
||||
from weakref import WeakMethod
|
||||
|
||||
T = t.TypeVar("T")
|
||||
|
||||
|
||||
class Symbol:
|
||||
"""A constant symbol, nicer than ``object()``. Repeated calls return the
|
||||
same instance.
|
||||
|
||||
>>> Symbol('foo') is Symbol('foo')
|
||||
True
|
||||
>>> Symbol('foo')
|
||||
foo
|
||||
"""
|
||||
|
||||
symbols: t.ClassVar[dict[str, Symbol]] = {}
|
||||
|
||||
def __new__(cls, name: str) -> Symbol:
|
||||
if name in cls.symbols:
|
||||
return cls.symbols[name]
|
||||
|
||||
obj = super().__new__(cls)
|
||||
cls.symbols[name] = obj
|
||||
return obj
|
||||
|
||||
def __init__(self, name: str) -> None:
|
||||
self.name = name
|
||||
|
||||
def __repr__(self) -> str:
|
||||
return self.name
|
||||
|
||||
def __getnewargs__(self) -> tuple[t.Any, ...]:
|
||||
return (self.name,)
|
||||
|
||||
|
||||
def make_id(obj: object) -> c.Hashable:
|
||||
"""Get a stable identifier for a receiver or sender, to be used as a dict
|
||||
key or in a set.
|
||||
"""
|
||||
if inspect.ismethod(obj):
|
||||
# The id of a bound method is not stable, but the id of the unbound
|
||||
# function and instance are.
|
||||
return id(obj.__func__), id(obj.__self__)
|
||||
|
||||
if isinstance(obj, (str, int)):
|
||||
# Instances with the same value always compare equal and have the same
|
||||
# hash, even if the id may change.
|
||||
return obj
|
||||
|
||||
# Assume other types are not hashable but will always be the same instance.
|
||||
return id(obj)
|
||||
|
||||
|
||||
def make_ref(obj: T, callback: c.Callable[[ref[T]], None] | None = None) -> ref[T]:
|
||||
if inspect.ismethod(obj):
|
||||
return WeakMethod(obj, callback) # type: ignore[arg-type, return-value]
|
||||
|
||||
return ref(obj, callback)
|
||||
@ -0,0 +1,512 @@
|
||||
from __future__ import annotations
|
||||
|
||||
import collections.abc as c
|
||||
import sys
|
||||
import typing as t
|
||||
import weakref
|
||||
from collections import defaultdict
|
||||
from contextlib import contextmanager
|
||||
from functools import cached_property
|
||||
from inspect import iscoroutinefunction
|
||||
|
||||
from ._utilities import make_id
|
||||
from ._utilities import make_ref
|
||||
from ._utilities import Symbol
|
||||
|
||||
F = t.TypeVar("F", bound=c.Callable[..., t.Any])
|
||||
|
||||
ANY = Symbol("ANY")
|
||||
"""Symbol for "any sender"."""
|
||||
|
||||
ANY_ID = 0
|
||||
|
||||
|
||||
class Signal:
|
||||
"""A notification emitter.
|
||||
|
||||
:param doc: The docstring for the signal.
|
||||
"""
|
||||
|
||||
ANY = ANY
|
||||
"""An alias for the :data:`~blinker.ANY` sender symbol."""
|
||||
|
||||
set_class: type[set[t.Any]] = set
|
||||
"""The set class to use for tracking connected receivers and senders.
|
||||
Python's ``set`` is unordered. If receivers must be dispatched in the order
|
||||
they were connected, an ordered set implementation can be used.
|
||||
|
||||
.. versionadded:: 1.7
|
||||
"""
|
||||
|
||||
@cached_property
|
||||
def receiver_connected(self) -> Signal:
|
||||
"""Emitted at the end of each :meth:`connect` call.
|
||||
|
||||
The signal sender is the signal instance, and the :meth:`connect`
|
||||
arguments are passed through: ``receiver``, ``sender``, and ``weak``.
|
||||
|
||||
.. versionadded:: 1.2
|
||||
"""
|
||||
return Signal(doc="Emitted after a receiver connects.")
|
||||
|
||||
@cached_property
|
||||
def receiver_disconnected(self) -> Signal:
|
||||
"""Emitted at the end of each :meth:`disconnect` call.
|
||||
|
||||
The sender is the signal instance, and the :meth:`disconnect` arguments
|
||||
are passed through: ``receiver`` and ``sender``.
|
||||
|
||||
This signal is emitted **only** when :meth:`disconnect` is called
|
||||
explicitly. This signal cannot be emitted by an automatic disconnect
|
||||
when a weakly referenced receiver or sender goes out of scope, as the
|
||||
instance is no longer be available to be used as the sender for this
|
||||
signal.
|
||||
|
||||
An alternative approach is available by subscribing to
|
||||
:attr:`receiver_connected` and setting up a custom weakref cleanup
|
||||
callback on weak receivers and senders.
|
||||
|
||||
.. versionadded:: 1.2
|
||||
"""
|
||||
return Signal(doc="Emitted after a receiver disconnects.")
|
||||
|
||||
def __init__(self, doc: str | None = None) -> None:
|
||||
if doc:
|
||||
self.__doc__ = doc
|
||||
|
||||
self.receivers: dict[
|
||||
t.Any, weakref.ref[c.Callable[..., t.Any]] | c.Callable[..., t.Any]
|
||||
] = {}
|
||||
"""The map of connected receivers. Useful to quickly check if any
|
||||
receivers are connected to the signal: ``if s.receivers:``. The
|
||||
structure and data is not part of the public API, but checking its
|
||||
boolean value is.
|
||||
"""
|
||||
|
||||
self.is_muted: bool = False
|
||||
self._by_receiver: dict[t.Any, set[t.Any]] = defaultdict(self.set_class)
|
||||
self._by_sender: dict[t.Any, set[t.Any]] = defaultdict(self.set_class)
|
||||
self._weak_senders: dict[t.Any, weakref.ref[t.Any]] = {}
|
||||
|
||||
def connect(self, receiver: F, sender: t.Any = ANY, weak: bool = True) -> F:
|
||||
"""Connect ``receiver`` to be called when the signal is sent by
|
||||
``sender``.
|
||||
|
||||
:param receiver: The callable to call when :meth:`send` is called with
|
||||
the given ``sender``, passing ``sender`` as a positional argument
|
||||
along with any extra keyword arguments.
|
||||
:param sender: Any object or :data:`ANY`. ``receiver`` will only be
|
||||
called when :meth:`send` is called with this sender. If ``ANY``, the
|
||||
receiver will be called for any sender. A receiver may be connected
|
||||
to multiple senders by calling :meth:`connect` multiple times.
|
||||
:param weak: Track the receiver with a :mod:`weakref`. The receiver will
|
||||
be automatically disconnected when it is garbage collected. When
|
||||
connecting a receiver defined within a function, set to ``False``,
|
||||
otherwise it will be disconnected when the function scope ends.
|
||||
"""
|
||||
receiver_id = make_id(receiver)
|
||||
sender_id = ANY_ID if sender is ANY else make_id(sender)
|
||||
|
||||
if weak:
|
||||
self.receivers[receiver_id] = make_ref(
|
||||
receiver, self._make_cleanup_receiver(receiver_id)
|
||||
)
|
||||
else:
|
||||
self.receivers[receiver_id] = receiver
|
||||
|
||||
self._by_sender[sender_id].add(receiver_id)
|
||||
self._by_receiver[receiver_id].add(sender_id)
|
||||
|
||||
if sender is not ANY and sender_id not in self._weak_senders:
|
||||
# store a cleanup for weakref-able senders
|
||||
try:
|
||||
self._weak_senders[sender_id] = make_ref(
|
||||
sender, self._make_cleanup_sender(sender_id)
|
||||
)
|
||||
except TypeError:
|
||||
pass
|
||||
|
||||
if "receiver_connected" in self.__dict__ and self.receiver_connected.receivers:
|
||||
try:
|
||||
self.receiver_connected.send(
|
||||
self, receiver=receiver, sender=sender, weak=weak
|
||||
)
|
||||
except TypeError:
|
||||
# TODO no explanation or test for this
|
||||
self.disconnect(receiver, sender)
|
||||
raise
|
||||
|
||||
return receiver
|
||||
|
||||
def connect_via(self, sender: t.Any, weak: bool = False) -> c.Callable[[F], F]:
|
||||
"""Connect the decorated function to be called when the signal is sent
|
||||
by ``sender``.
|
||||
|
||||
The decorated function will be called when :meth:`send` is called with
|
||||
the given ``sender``, passing ``sender`` as a positional argument along
|
||||
with any extra keyword arguments.
|
||||
|
||||
:param sender: Any object or :data:`ANY`. ``receiver`` will only be
|
||||
called when :meth:`send` is called with this sender. If ``ANY``, the
|
||||
receiver will be called for any sender. A receiver may be connected
|
||||
to multiple senders by calling :meth:`connect` multiple times.
|
||||
:param weak: Track the receiver with a :mod:`weakref`. The receiver will
|
||||
be automatically disconnected when it is garbage collected. When
|
||||
connecting a receiver defined within a function, set to ``False``,
|
||||
otherwise it will be disconnected when the function scope ends.=
|
||||
|
||||
.. versionadded:: 1.1
|
||||
"""
|
||||
|
||||
def decorator(fn: F) -> F:
|
||||
self.connect(fn, sender, weak)
|
||||
return fn
|
||||
|
||||
return decorator
|
||||
|
||||
@contextmanager
|
||||
def connected_to(
|
||||
self, receiver: c.Callable[..., t.Any], sender: t.Any = ANY
|
||||
) -> c.Generator[None, None, None]:
|
||||
"""A context manager that temporarily connects ``receiver`` to the
|
||||
signal while a ``with`` block executes. When the block exits, the
|
||||
receiver is disconnected. Useful for tests.
|
||||
|
||||
:param receiver: The callable to call when :meth:`send` is called with
|
||||
the given ``sender``, passing ``sender`` as a positional argument
|
||||
along with any extra keyword arguments.
|
||||
:param sender: Any object or :data:`ANY`. ``receiver`` will only be
|
||||
called when :meth:`send` is called with this sender. If ``ANY``, the
|
||||
receiver will be called for any sender.
|
||||
|
||||
.. versionadded:: 1.1
|
||||
"""
|
||||
self.connect(receiver, sender=sender, weak=False)
|
||||
|
||||
try:
|
||||
yield None
|
||||
finally:
|
||||
self.disconnect(receiver)
|
||||
|
||||
@contextmanager
|
||||
def muted(self) -> c.Generator[None, None, None]:
|
||||
"""A context manager that temporarily disables the signal. No receivers
|
||||
will be called if the signal is sent, until the ``with`` block exits.
|
||||
Useful for tests.
|
||||
"""
|
||||
self.is_muted = True
|
||||
|
||||
try:
|
||||
yield None
|
||||
finally:
|
||||
self.is_muted = False
|
||||
|
||||
def send(
|
||||
self,
|
||||
sender: t.Any | None = None,
|
||||
/,
|
||||
*,
|
||||
_async_wrapper: c.Callable[
|
||||
[c.Callable[..., c.Coroutine[t.Any, t.Any, t.Any]]], c.Callable[..., t.Any]
|
||||
]
|
||||
| None = None,
|
||||
**kwargs: t.Any,
|
||||
) -> list[tuple[c.Callable[..., t.Any], t.Any]]:
|
||||
"""Call all receivers that are connected to the given ``sender``
|
||||
or :data:`ANY`. Each receiver is called with ``sender`` as a positional
|
||||
argument along with any extra keyword arguments. Return a list of
|
||||
``(receiver, return value)`` tuples.
|
||||
|
||||
The order receivers are called is undefined, but can be influenced by
|
||||
setting :attr:`set_class`.
|
||||
|
||||
If a receiver raises an exception, that exception will propagate up.
|
||||
This makes debugging straightforward, with an assumption that correctly
|
||||
implemented receivers will not raise.
|
||||
|
||||
:param sender: Call receivers connected to this sender, in addition to
|
||||
those connected to :data:`ANY`.
|
||||
:param _async_wrapper: Will be called on any receivers that are async
|
||||
coroutines to turn them into sync callables. For example, could run
|
||||
the receiver with an event loop.
|
||||
:param kwargs: Extra keyword arguments to pass to each receiver.
|
||||
|
||||
.. versionchanged:: 1.7
|
||||
Added the ``_async_wrapper`` argument.
|
||||
"""
|
||||
if self.is_muted:
|
||||
return []
|
||||
|
||||
results = []
|
||||
|
||||
for receiver in self.receivers_for(sender):
|
||||
if iscoroutinefunction(receiver):
|
||||
if _async_wrapper is None:
|
||||
raise RuntimeError("Cannot send to a coroutine function.")
|
||||
|
||||
result = _async_wrapper(receiver)(sender, **kwargs)
|
||||
else:
|
||||
result = receiver(sender, **kwargs)
|
||||
|
||||
results.append((receiver, result))
|
||||
|
||||
return results
|
||||
|
||||
async def send_async(
|
||||
self,
|
||||
sender: t.Any | None = None,
|
||||
/,
|
||||
*,
|
||||
_sync_wrapper: c.Callable[
|
||||
[c.Callable[..., t.Any]], c.Callable[..., c.Coroutine[t.Any, t.Any, t.Any]]
|
||||
]
|
||||
| None = None,
|
||||
**kwargs: t.Any,
|
||||
) -> list[tuple[c.Callable[..., t.Any], t.Any]]:
|
||||
"""Await all receivers that are connected to the given ``sender``
|
||||
or :data:`ANY`. Each receiver is called with ``sender`` as a positional
|
||||
argument along with any extra keyword arguments. Return a list of
|
||||
``(receiver, return value)`` tuples.
|
||||
|
||||
The order receivers are called is undefined, but can be influenced by
|
||||
setting :attr:`set_class`.
|
||||
|
||||
If a receiver raises an exception, that exception will propagate up.
|
||||
This makes debugging straightforward, with an assumption that correctly
|
||||
implemented receivers will not raise.
|
||||
|
||||
:param sender: Call receivers connected to this sender, in addition to
|
||||
those connected to :data:`ANY`.
|
||||
:param _sync_wrapper: Will be called on any receivers that are sync
|
||||
callables to turn them into async coroutines. For example,
|
||||
could call the receiver in a thread.
|
||||
:param kwargs: Extra keyword arguments to pass to each receiver.
|
||||
|
||||
.. versionadded:: 1.7
|
||||
"""
|
||||
if self.is_muted:
|
||||
return []
|
||||
|
||||
results = []
|
||||
|
||||
for receiver in self.receivers_for(sender):
|
||||
if not iscoroutinefunction(receiver):
|
||||
if _sync_wrapper is None:
|
||||
raise RuntimeError("Cannot send to a non-coroutine function.")
|
||||
|
||||
result = await _sync_wrapper(receiver)(sender, **kwargs)
|
||||
else:
|
||||
result = await receiver(sender, **kwargs)
|
||||
|
||||
results.append((receiver, result))
|
||||
|
||||
return results
|
||||
|
||||
def has_receivers_for(self, sender: t.Any) -> bool:
|
||||
"""Check if there is at least one receiver that will be called with the
|
||||
given ``sender``. A receiver connected to :data:`ANY` will always be
|
||||
called, regardless of sender. Does not check if weakly referenced
|
||||
receivers are still live. See :meth:`receivers_for` for a stronger
|
||||
search.
|
||||
|
||||
:param sender: Check for receivers connected to this sender, in addition
|
||||
to those connected to :data:`ANY`.
|
||||
"""
|
||||
if not self.receivers:
|
||||
return False
|
||||
|
||||
if self._by_sender[ANY_ID]:
|
||||
return True
|
||||
|
||||
if sender is ANY:
|
||||
return False
|
||||
|
||||
return make_id(sender) in self._by_sender
|
||||
|
||||
def receivers_for(
|
||||
self, sender: t.Any
|
||||
) -> c.Generator[c.Callable[..., t.Any], None, None]:
|
||||
"""Yield each receiver to be called for ``sender``, in addition to those
|
||||
to be called for :data:`ANY`. Weakly referenced receivers that are not
|
||||
live will be disconnected and skipped.
|
||||
|
||||
:param sender: Yield receivers connected to this sender, in addition
|
||||
to those connected to :data:`ANY`.
|
||||
"""
|
||||
# TODO: test receivers_for(ANY)
|
||||
if not self.receivers:
|
||||
return
|
||||
|
||||
sender_id = make_id(sender)
|
||||
|
||||
if sender_id in self._by_sender:
|
||||
ids = self._by_sender[ANY_ID] | self._by_sender[sender_id]
|
||||
else:
|
||||
ids = self._by_sender[ANY_ID].copy()
|
||||
|
||||
for receiver_id in ids:
|
||||
receiver = self.receivers.get(receiver_id)
|
||||
|
||||
if receiver is None:
|
||||
continue
|
||||
|
||||
if isinstance(receiver, weakref.ref):
|
||||
strong = receiver()
|
||||
|
||||
if strong is None:
|
||||
self._disconnect(receiver_id, ANY_ID)
|
||||
continue
|
||||
|
||||
yield strong
|
||||
else:
|
||||
yield receiver
|
||||
|
||||
def disconnect(self, receiver: c.Callable[..., t.Any], sender: t.Any = ANY) -> None:
|
||||
"""Disconnect ``receiver`` from being called when the signal is sent by
|
||||
``sender``.
|
||||
|
||||
:param receiver: A connected receiver callable.
|
||||
:param sender: Disconnect from only this sender. By default, disconnect
|
||||
from all senders.
|
||||
"""
|
||||
sender_id: c.Hashable
|
||||
|
||||
if sender is ANY:
|
||||
sender_id = ANY_ID
|
||||
else:
|
||||
sender_id = make_id(sender)
|
||||
|
||||
receiver_id = make_id(receiver)
|
||||
self._disconnect(receiver_id, sender_id)
|
||||
|
||||
if (
|
||||
"receiver_disconnected" in self.__dict__
|
||||
and self.receiver_disconnected.receivers
|
||||
):
|
||||
self.receiver_disconnected.send(self, receiver=receiver, sender=sender)
|
||||
|
||||
def _disconnect(self, receiver_id: c.Hashable, sender_id: c.Hashable) -> None:
|
||||
if sender_id == ANY_ID:
|
||||
if self._by_receiver.pop(receiver_id, None) is not None:
|
||||
for bucket in self._by_sender.values():
|
||||
bucket.discard(receiver_id)
|
||||
|
||||
self.receivers.pop(receiver_id, None)
|
||||
else:
|
||||
self._by_sender[sender_id].discard(receiver_id)
|
||||
self._by_receiver[receiver_id].discard(sender_id)
|
||||
|
||||
def _make_cleanup_receiver(
|
||||
self, receiver_id: c.Hashable
|
||||
) -> c.Callable[[weakref.ref[c.Callable[..., t.Any]]], None]:
|
||||
"""Create a callback function to disconnect a weakly referenced
|
||||
receiver when it is garbage collected.
|
||||
"""
|
||||
|
||||
def cleanup(ref: weakref.ref[c.Callable[..., t.Any]]) -> None:
|
||||
# If the interpreter is shutting down, disconnecting can result in a
|
||||
# weird ignored exception. Don't call it in that case.
|
||||
if not sys.is_finalizing():
|
||||
self._disconnect(receiver_id, ANY_ID)
|
||||
|
||||
return cleanup
|
||||
|
||||
def _make_cleanup_sender(
|
||||
self, sender_id: c.Hashable
|
||||
) -> c.Callable[[weakref.ref[t.Any]], None]:
|
||||
"""Create a callback function to disconnect all receivers for a weakly
|
||||
referenced sender when it is garbage collected.
|
||||
"""
|
||||
assert sender_id != ANY_ID
|
||||
|
||||
def cleanup(ref: weakref.ref[t.Any]) -> None:
|
||||
self._weak_senders.pop(sender_id, None)
|
||||
|
||||
for receiver_id in self._by_sender.pop(sender_id, ()):
|
||||
self._by_receiver[receiver_id].discard(sender_id)
|
||||
|
||||
return cleanup
|
||||
|
||||
def _cleanup_bookkeeping(self) -> None:
|
||||
"""Prune unused sender/receiver bookkeeping. Not threadsafe.
|
||||
|
||||
Connecting & disconnecting leaves behind a small amount of bookkeeping
|
||||
data. Typical workloads using Blinker, for example in most web apps,
|
||||
Flask, CLI scripts, etc., are not adversely affected by this
|
||||
bookkeeping.
|
||||
|
||||
With a long-running process performing dynamic signal routing with high
|
||||
volume, e.g. connecting to function closures, senders are all unique
|
||||
object instances. Doing all of this over and over may cause memory usage
|
||||
to grow due to extraneous bookkeeping. (An empty ``set`` for each stale
|
||||
sender/receiver pair.)
|
||||
|
||||
This method will prune that bookkeeping away, with the caveat that such
|
||||
pruning is not threadsafe. The risk is that cleanup of a fully
|
||||
disconnected receiver/sender pair occurs while another thread is
|
||||
connecting that same pair. If you are in the highly dynamic, unique
|
||||
receiver/sender situation that has lead you to this method, that failure
|
||||
mode is perhaps not a big deal for you.
|
||||
"""
|
||||
for mapping in (self._by_sender, self._by_receiver):
|
||||
for ident, bucket in list(mapping.items()):
|
||||
if not bucket:
|
||||
mapping.pop(ident, None)
|
||||
|
||||
def _clear_state(self) -> None:
|
||||
"""Disconnect all receivers and senders. Useful for tests."""
|
||||
self._weak_senders.clear()
|
||||
self.receivers.clear()
|
||||
self._by_sender.clear()
|
||||
self._by_receiver.clear()
|
||||
|
||||
|
||||
class NamedSignal(Signal):
|
||||
"""A named generic notification emitter. The name is not used by the signal
|
||||
itself, but matches the key in the :class:`Namespace` that it belongs to.
|
||||
|
||||
:param name: The name of the signal within the namespace.
|
||||
:param doc: The docstring for the signal.
|
||||
"""
|
||||
|
||||
def __init__(self, name: str, doc: str | None = None) -> None:
|
||||
super().__init__(doc)
|
||||
|
||||
#: The name of this signal.
|
||||
self.name: str = name
|
||||
|
||||
def __repr__(self) -> str:
|
||||
base = super().__repr__()
|
||||
return f"{base[:-1]}; {self.name!r}>" # noqa: E702
|
||||
|
||||
|
||||
class Namespace(dict[str, NamedSignal]):
|
||||
"""A dict mapping names to signals."""
|
||||
|
||||
def signal(self, name: str, doc: str | None = None) -> NamedSignal:
|
||||
"""Return the :class:`NamedSignal` for the given ``name``, creating it
|
||||
if required. Repeated calls with the same name return the same signal.
|
||||
|
||||
:param name: The name of the signal.
|
||||
:param doc: The docstring of the signal.
|
||||
"""
|
||||
if name not in self:
|
||||
self[name] = NamedSignal(name, doc)
|
||||
|
||||
return self[name]
|
||||
|
||||
|
||||
class _PNamespaceSignal(t.Protocol):
|
||||
def __call__(self, name: str, doc: str | None = None) -> NamedSignal: ...
|
||||
|
||||
|
||||
default_namespace: Namespace = Namespace()
|
||||
"""A default :class:`Namespace` for creating named signals. :func:`signal`
|
||||
creates a :class:`NamedSignal` in this namespace.
|
||||
"""
|
||||
|
||||
signal: _PNamespaceSignal = default_namespace.signal
|
||||
"""Return a :class:`NamedSignal` in :data:`default_namespace` with the given
|
||||
``name``, creating it if required. Repeated calls with the same name return the
|
||||
same signal.
|
||||
"""
|
||||
@ -0,0 +1 @@
|
||||
pip
|
||||
@ -0,0 +1,28 @@
|
||||
Copyright 2018 Pallets
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
1. Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
2. Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
3. Neither the name of the copyright holder nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
|
||||
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
@ -0,0 +1,64 @@
|
||||
Metadata-Version: 2.1
|
||||
Name: cachelib
|
||||
Version: 0.13.0
|
||||
Summary: A collection of cache libraries in the same API interface.
|
||||
Home-page: https://github.com/pallets-eco/cachelib/
|
||||
Maintainer: Pallets
|
||||
Maintainer-email: contact@palletsprojects.com
|
||||
License: BSD-3-Clause
|
||||
Project-URL: Donate, https://palletsprojects.com/donate
|
||||
Project-URL: Documentation, https://cachelib.readthedocs.io/
|
||||
Project-URL: Changes, https://cachelib.readthedocs.io/changes/
|
||||
Project-URL: Source Code, https://github.com/pallets-eco/cachelib/
|
||||
Project-URL: Issue Tracker, https://github.com/pallets-eco/cachelib/issues/
|
||||
Project-URL: Twitter, https://twitter.com/PalletsTeam
|
||||
Project-URL: Chat, https://discord.gg/pallets
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: Intended Audience :: Developers
|
||||
Classifier: License :: OSI Approved :: BSD License
|
||||
Classifier: Operating System :: OS Independent
|
||||
Classifier: Programming Language :: Python
|
||||
Requires-Python: >=3.8
|
||||
Description-Content-Type: text/x-rst
|
||||
License-File: LICENSE.rst
|
||||
|
||||
CacheLib
|
||||
========
|
||||
|
||||
A collection of cache libraries in the same API interface. Extracted
|
||||
from Werkzeug.
|
||||
|
||||
|
||||
Installing
|
||||
----------
|
||||
|
||||
Install and update using `pip`_:
|
||||
|
||||
.. code-block:: text
|
||||
|
||||
$ pip install -U cachelib
|
||||
|
||||
.. _pip: https://pip.pypa.io/en/stable/getting-started/
|
||||
|
||||
|
||||
Donate
|
||||
------
|
||||
|
||||
The Pallets organization develops and supports Flask and the libraries
|
||||
it uses. In order to grow the community of contributors and users, and
|
||||
allow the maintainers to devote more time to the projects, `please
|
||||
donate today`_.
|
||||
|
||||
.. _please donate today: https://palletsprojects.com/donate
|
||||
|
||||
|
||||
Links
|
||||
-----
|
||||
|
||||
- Documentation: https://cachelib.readthedocs.io/
|
||||
- Changes: https://cachelib.readthedocs.io/changes/
|
||||
- PyPI Releases: https://pypi.org/project/cachelib/
|
||||
- Source Code: https://github.com/pallets/cachelib/
|
||||
- Issue Tracker: https://github.com/pallets/cachelib/issues/
|
||||
- Twitter: https://twitter.com/PalletsTeam
|
||||
- Chat: https://discord.gg/pallets
|
||||
@ -0,0 +1,27 @@
|
||||
cachelib-0.13.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
|
||||
cachelib-0.13.0.dist-info/LICENSE.rst,sha256=zUGBIIEtwmJiga4CfoG2SCKdFmtaynRyzs1RADjTbn0,1475
|
||||
cachelib-0.13.0.dist-info/METADATA,sha256=lqDsbA03sUETX-dGoDR1uDqqXtyu1m0sS0wBjCDEeXE,1960
|
||||
cachelib-0.13.0.dist-info/RECORD,,
|
||||
cachelib-0.13.0.dist-info/WHEEL,sha256=oiQVh_5PnQM0E3gPdiz09WCNmwiHDMaGer_elqB3coM,92
|
||||
cachelib-0.13.0.dist-info/top_level.txt,sha256=AYC4q8wgGd_hR_F2YcDkmtQm41gv9-5AThKuQtNPEXk,9
|
||||
cachelib/__init__.py,sha256=xTX_F13-FA58DjBGip4XZeCSlEo6B4c4VTRi49MBywY,575
|
||||
cachelib/__pycache__/__init__.cpython-312.pyc,,
|
||||
cachelib/__pycache__/base.cpython-312.pyc,,
|
||||
cachelib/__pycache__/dynamodb.cpython-312.pyc,,
|
||||
cachelib/__pycache__/file.cpython-312.pyc,,
|
||||
cachelib/__pycache__/memcached.cpython-312.pyc,,
|
||||
cachelib/__pycache__/mongodb.cpython-312.pyc,,
|
||||
cachelib/__pycache__/redis.cpython-312.pyc,,
|
||||
cachelib/__pycache__/serializers.cpython-312.pyc,,
|
||||
cachelib/__pycache__/simple.cpython-312.pyc,,
|
||||
cachelib/__pycache__/uwsgi.cpython-312.pyc,,
|
||||
cachelib/base.py,sha256=3_B-cB1VEh_x-VzH9g3qvzdqCxDX2ywDzQ7a_aYFJlE,6731
|
||||
cachelib/dynamodb.py,sha256=fSmp8G7V0yBcRC2scdIhz8d0D2-9OMZEwQ9AcBONyC8,8512
|
||||
cachelib/file.py,sha256=xu6m7nzTMcca_wYS0oM4iOxLarQHZFrhUnQnFYansy4,12270
|
||||
cachelib/memcached.py,sha256=KyUN4wblVPf2XNLYk15kwN9QTfkFK6jrpVGrj4NAoFA,7160
|
||||
cachelib/mongodb.py,sha256=b9l8fTKMFm8hAXFn748GKertHUASSVDBgPgrtGaZ6cA,6901
|
||||
cachelib/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
|
||||
cachelib/redis.py,sha256=hSKV9fVD7gzk1X_B3Ac9XJYN3G3F6eYBoreqDo9pces,6295
|
||||
cachelib/serializers.py,sha256=MXk1moN6ljOPUFQ0E0D129mZlrDDwuQ5DvInNkitvoI,3343
|
||||
cachelib/simple.py,sha256=8UPp95_oc3bLeW_gzFUzdppIKV8hV_o_yQYoKb8gVMk,3422
|
||||
cachelib/uwsgi.py,sha256=4DX3C9QGvB6mVcg1d7qpLIEkI6bccuq-8M6I_YbPicY,2563
|
||||
@ -0,0 +1,5 @@
|
||||
Wheel-Version: 1.0
|
||||
Generator: bdist_wheel (0.42.0)
|
||||
Root-Is-Purelib: true
|
||||
Tag: py3-none-any
|
||||
|
||||
@ -0,0 +1 @@
|
||||
cachelib
|
||||
@ -0,0 +1,22 @@
|
||||
from cachelib.base import BaseCache
|
||||
from cachelib.base import NullCache
|
||||
from cachelib.dynamodb import DynamoDbCache
|
||||
from cachelib.file import FileSystemCache
|
||||
from cachelib.memcached import MemcachedCache
|
||||
from cachelib.mongodb import MongoDbCache
|
||||
from cachelib.redis import RedisCache
|
||||
from cachelib.simple import SimpleCache
|
||||
from cachelib.uwsgi import UWSGICache
|
||||
|
||||
__all__ = [
|
||||
"BaseCache",
|
||||
"NullCache",
|
||||
"SimpleCache",
|
||||
"FileSystemCache",
|
||||
"MemcachedCache",
|
||||
"RedisCache",
|
||||
"UWSGICache",
|
||||
"DynamoDbCache",
|
||||
"MongoDbCache",
|
||||
]
|
||||
__version__ = "0.13.0"
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -0,0 +1,185 @@
|
||||
import typing as _t
|
||||
|
||||
|
||||
class BaseCache:
|
||||
"""Baseclass for the cache systems. All the cache systems implement this
|
||||
API or a superset of it.
|
||||
|
||||
:param default_timeout: the default timeout (in seconds) that is used if
|
||||
no timeout is specified on :meth:`set`. A timeout
|
||||
of 0 indicates that the cache never expires.
|
||||
"""
|
||||
|
||||
def __init__(self, default_timeout: int = 300):
|
||||
self.default_timeout = default_timeout
|
||||
|
||||
def _normalize_timeout(self, timeout: _t.Optional[int]) -> int:
|
||||
if timeout is None:
|
||||
timeout = self.default_timeout
|
||||
return timeout
|
||||
|
||||
def get(self, key: str) -> _t.Any:
|
||||
"""Look up key in the cache and return the value for it.
|
||||
|
||||
:param key: the key to be looked up.
|
||||
:returns: The value if it exists and is readable, else ``None``.
|
||||
"""
|
||||
return None
|
||||
|
||||
def delete(self, key: str) -> bool:
|
||||
"""Delete `key` from the cache.
|
||||
|
||||
:param key: the key to delete.
|
||||
:returns: Whether the key existed and has been deleted.
|
||||
:rtype: boolean
|
||||
"""
|
||||
return True
|
||||
|
||||
def get_many(self, *keys: str) -> _t.List[_t.Any]:
|
||||
"""Returns a list of values for the given keys.
|
||||
For each key an item in the list is created::
|
||||
|
||||
foo, bar = cache.get_many("foo", "bar")
|
||||
|
||||
Has the same error handling as :meth:`get`.
|
||||
|
||||
:param keys: The function accepts multiple keys as positional
|
||||
arguments.
|
||||
"""
|
||||
return [self.get(k) for k in keys]
|
||||
|
||||
def get_dict(self, *keys: str) -> _t.Dict[str, _t.Any]:
|
||||
"""Like :meth:`get_many` but return a dict::
|
||||
|
||||
d = cache.get_dict("foo", "bar")
|
||||
foo = d["foo"]
|
||||
bar = d["bar"]
|
||||
|
||||
:param keys: The function accepts multiple keys as positional
|
||||
arguments.
|
||||
"""
|
||||
return dict(zip(keys, self.get_many(*keys))) # noqa: B905
|
||||
|
||||
def set(
|
||||
self, key: str, value: _t.Any, timeout: _t.Optional[int] = None
|
||||
) -> _t.Optional[bool]:
|
||||
"""Add a new key/value to the cache (overwrites value, if key already
|
||||
exists in the cache).
|
||||
|
||||
:param key: the key to set
|
||||
:param value: the value for the key
|
||||
:param timeout: the cache timeout for the key in seconds (if not
|
||||
specified, it uses the default timeout). A timeout of
|
||||
0 indicates that the cache never expires.
|
||||
:returns: ``True`` if key has been updated, ``False`` for backend
|
||||
errors. Pickling errors, however, will raise a subclass of
|
||||
``pickle.PickleError``.
|
||||
:rtype: boolean
|
||||
"""
|
||||
return True
|
||||
|
||||
def add(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> bool:
|
||||
"""Works like :meth:`set` but does not overwrite the values of already
|
||||
existing keys.
|
||||
|
||||
:param key: the key to set
|
||||
:param value: the value for the key
|
||||
:param timeout: the cache timeout for the key in seconds (if not
|
||||
specified, it uses the default timeout). A timeout of
|
||||
0 indicates that the cache never expires.
|
||||
:returns: Same as :meth:`set`, but also ``False`` for already
|
||||
existing keys.
|
||||
:rtype: boolean
|
||||
"""
|
||||
return True
|
||||
|
||||
def set_many(
|
||||
self, mapping: _t.Dict[str, _t.Any], timeout: _t.Optional[int] = None
|
||||
) -> _t.List[_t.Any]:
|
||||
"""Sets multiple keys and values from a mapping.
|
||||
|
||||
:param mapping: a mapping with the keys/values to set.
|
||||
:param timeout: the cache timeout for the key in seconds (if not
|
||||
specified, it uses the default timeout). A timeout of
|
||||
0 indicates that the cache never expires.
|
||||
:returns: A list containing all keys successfully set
|
||||
:rtype: boolean
|
||||
"""
|
||||
set_keys = []
|
||||
for key, value in mapping.items():
|
||||
if self.set(key, value, timeout):
|
||||
set_keys.append(key)
|
||||
return set_keys
|
||||
|
||||
def delete_many(self, *keys: str) -> _t.List[_t.Any]:
|
||||
"""Deletes multiple keys at once.
|
||||
|
||||
:param keys: The function accepts multiple keys as positional
|
||||
arguments.
|
||||
:returns: A list containing all successfully deleted keys
|
||||
:rtype: boolean
|
||||
"""
|
||||
deleted_keys = []
|
||||
for key in keys:
|
||||
if self.delete(key):
|
||||
deleted_keys.append(key)
|
||||
return deleted_keys
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
"""Checks if a key exists in the cache without returning it. This is a
|
||||
cheap operation that bypasses loading the actual data on the backend.
|
||||
|
||||
:param key: the key to check
|
||||
"""
|
||||
raise NotImplementedError(
|
||||
"%s doesn't have an efficient implementation of `has`. That "
|
||||
"means it is impossible to check whether a key exists without "
|
||||
"fully loading the key's data. Consider using `self.get` "
|
||||
"explicitly if you don't care about performance."
|
||||
)
|
||||
|
||||
def clear(self) -> bool:
|
||||
"""Clears the cache. Keep in mind that not all caches support
|
||||
completely clearing the cache.
|
||||
|
||||
:returns: Whether the cache has been cleared.
|
||||
:rtype: boolean
|
||||
"""
|
||||
return True
|
||||
|
||||
def inc(self, key: str, delta: int = 1) -> _t.Optional[int]:
|
||||
"""Increments the value of a key by `delta`. If the key does
|
||||
not yet exist it is initialized with `delta`.
|
||||
|
||||
For supporting caches this is an atomic operation.
|
||||
|
||||
:param key: the key to increment.
|
||||
:param delta: the delta to add.
|
||||
:returns: The new value or ``None`` for backend errors.
|
||||
"""
|
||||
value = (self.get(key) or 0) + delta
|
||||
return value if self.set(key, value) else None
|
||||
|
||||
def dec(self, key: str, delta: int = 1) -> _t.Optional[int]:
|
||||
"""Decrements the value of a key by `delta`. If the key does
|
||||
not yet exist it is initialized with `-delta`.
|
||||
|
||||
For supporting caches this is an atomic operation.
|
||||
|
||||
:param key: the key to increment.
|
||||
:param delta: the delta to subtract.
|
||||
:returns: The new value or `None` for backend errors.
|
||||
"""
|
||||
value = (self.get(key) or 0) - delta
|
||||
return value if self.set(key, value) else None
|
||||
|
||||
|
||||
class NullCache(BaseCache):
|
||||
"""A cache that doesn't cache. This can be useful for unit testing.
|
||||
|
||||
:param default_timeout: a dummy parameter that is ignored but exists
|
||||
for API compatibility with other caches.
|
||||
"""
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
return False
|
||||
@ -0,0 +1,226 @@
|
||||
import datetime
|
||||
import typing as _t
|
||||
|
||||
from cachelib.base import BaseCache
|
||||
from cachelib.serializers import DynamoDbSerializer
|
||||
|
||||
CREATED_AT_FIELD = "created_at"
|
||||
RESPONSE_FIELD = "response"
|
||||
|
||||
|
||||
class DynamoDbCache(BaseCache):
|
||||
"""
|
||||
Implementation of cachelib.BaseCache that uses an AWS DynamoDb table
|
||||
as the backend.
|
||||
|
||||
Your server process will require dynamodb:GetItem and dynamodb:PutItem
|
||||
IAM permissions on the cache table.
|
||||
|
||||
Limitations: DynamoDB table items are limited to 400 KB in size. Since
|
||||
this class stores cached items in a table, the max size of a cache entry
|
||||
will be slightly less than 400 KB, since the cache key and expiration
|
||||
time fields are also part of the item.
|
||||
|
||||
:param table_name: The name of the DynamoDB table to use
|
||||
:param default_timeout: Set the timeout in seconds after which cache entries
|
||||
expire
|
||||
:param key_field: The name of the hash_key attribute in the DynamoDb
|
||||
table. This must be a string attribute.
|
||||
:param expiration_time_field: The name of the table attribute to store the
|
||||
expiration time in. This will be an int
|
||||
attribute. The timestamp will be stored as
|
||||
seconds past the epoch. If you configure
|
||||
this as the TTL field, then DynamoDB will
|
||||
automatically delete expired entries.
|
||||
:param key_prefix: A prefix that should be added to all keys.
|
||||
|
||||
"""
|
||||
|
||||
serializer = DynamoDbSerializer()
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
table_name: _t.Optional[str] = "python-cache",
|
||||
default_timeout: int = 300,
|
||||
key_field: _t.Optional[str] = "cache_key",
|
||||
expiration_time_field: _t.Optional[str] = "expiration_time",
|
||||
key_prefix: _t.Optional[str] = None,
|
||||
**kwargs: _t.Any
|
||||
):
|
||||
super().__init__(default_timeout)
|
||||
|
||||
try:
|
||||
import boto3 # type: ignore
|
||||
except ImportError as err:
|
||||
raise RuntimeError("no boto3 module found") from err
|
||||
|
||||
self._table_name = table_name
|
||||
self._key_field = key_field
|
||||
self._expiration_time_field = expiration_time_field
|
||||
self.key_prefix = key_prefix or ""
|
||||
self._dynamo = boto3.resource("dynamodb", **kwargs)
|
||||
self._attr = boto3.dynamodb.conditions.Attr
|
||||
|
||||
try:
|
||||
self._table = self._dynamo.Table(table_name)
|
||||
self._table.load()
|
||||
# catch this exception (triggered if the table doesn't exist)
|
||||
except Exception:
|
||||
table = self._dynamo.create_table(
|
||||
AttributeDefinitions=[
|
||||
{"AttributeName": key_field, "AttributeType": "S"}
|
||||
],
|
||||
TableName=table_name,
|
||||
KeySchema=[
|
||||
{"AttributeName": key_field, "KeyType": "HASH"},
|
||||
],
|
||||
BillingMode="PAY_PER_REQUEST",
|
||||
)
|
||||
table.wait_until_exists()
|
||||
dynamo = boto3.client("dynamodb", **kwargs)
|
||||
dynamo.update_time_to_live(
|
||||
TableName=table_name,
|
||||
TimeToLiveSpecification={
|
||||
"Enabled": True,
|
||||
"AttributeName": expiration_time_field,
|
||||
},
|
||||
)
|
||||
self._table = self._dynamo.Table(table_name)
|
||||
self._table.load()
|
||||
|
||||
def _utcnow(self) -> _t.Any:
|
||||
"""Return a tz-aware UTC datetime representing the current time"""
|
||||
return datetime.datetime.utcnow().replace(tzinfo=datetime.timezone.utc)
|
||||
|
||||
def _get_item(self, key: str, attributes: _t.Optional[list] = None) -> _t.Any:
|
||||
"""
|
||||
Get an item from the cache table, optionally limiting the returned
|
||||
attributes.
|
||||
|
||||
:param key: The cache key of the item to fetch
|
||||
|
||||
:param attributes: An optional list of attributes to fetch. If not
|
||||
given, all attributes are fetched. The
|
||||
expiration_time field will always be added to the
|
||||
list of fetched attributes.
|
||||
:return: The table item for key if it exists and is not expired, else
|
||||
None
|
||||
"""
|
||||
kwargs = {}
|
||||
if attributes:
|
||||
if self._expiration_time_field not in attributes:
|
||||
attributes = list(attributes) + [self._expiration_time_field]
|
||||
kwargs = dict(ProjectionExpression=",".join(attributes))
|
||||
|
||||
response = self._table.get_item(Key={self._key_field: key}, **kwargs)
|
||||
cache_item = response.get("Item")
|
||||
|
||||
if cache_item:
|
||||
now = int(self._utcnow().timestamp())
|
||||
if cache_item.get(self._expiration_time_field, now + 100) > now:
|
||||
return cache_item
|
||||
|
||||
return None
|
||||
|
||||
def get(self, key: str) -> _t.Any:
|
||||
"""
|
||||
Get a cache item
|
||||
|
||||
:param key: The cache key of the item to fetch
|
||||
:return: cache value if not expired, else None
|
||||
"""
|
||||
cache_item = self._get_item(self.key_prefix + key)
|
||||
if cache_item:
|
||||
response = cache_item[RESPONSE_FIELD]
|
||||
value = self.serializer.loads(response)
|
||||
return value
|
||||
return None
|
||||
|
||||
def delete(self, key: str) -> bool:
|
||||
"""
|
||||
Deletes an item from the cache. This is a no-op if the item doesn't
|
||||
exist
|
||||
|
||||
:param key: Key of the item to delete.
|
||||
:return: True if the key existed and was deleted
|
||||
"""
|
||||
try:
|
||||
self._table.delete_item(
|
||||
Key={self._key_field: self.key_prefix + key},
|
||||
ConditionExpression=self._attr(self._key_field).exists(),
|
||||
)
|
||||
return True
|
||||
except self._dynamo.meta.client.exceptions.ConditionalCheckFailedException:
|
||||
return False
|
||||
|
||||
def _set(
|
||||
self,
|
||||
key: str,
|
||||
value: _t.Any,
|
||||
timeout: _t.Optional[int] = None,
|
||||
overwrite: _t.Optional[bool] = True,
|
||||
) -> _t.Any:
|
||||
"""
|
||||
Store a cache item, with the option to not overwrite existing items
|
||||
|
||||
:param key: Cache key to use
|
||||
:param value: a serializable object
|
||||
:param timeout: The timeout in seconds for the cached item, to override
|
||||
the default
|
||||
:param overwrite: If true, overwrite any existing cache item with key.
|
||||
If false, the new value will only be stored if no
|
||||
non-expired cache item exists with key.
|
||||
:return: True if the new item was stored.
|
||||
"""
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
now = self._utcnow()
|
||||
|
||||
kwargs = {}
|
||||
if not overwrite:
|
||||
# Cause the put to fail if a non-expired item with this key
|
||||
# already exists
|
||||
|
||||
cond = self._attr(self._key_field).not_exists() | self._attr(
|
||||
self._expiration_time_field
|
||||
).lte(int(now.timestamp()))
|
||||
kwargs = dict(ConditionExpression=cond)
|
||||
|
||||
try:
|
||||
dump = self.serializer.dumps(value)
|
||||
item = {
|
||||
self._key_field: key,
|
||||
CREATED_AT_FIELD: now.isoformat(),
|
||||
RESPONSE_FIELD: dump,
|
||||
}
|
||||
if timeout > 0:
|
||||
expiration_time = now + datetime.timedelta(seconds=timeout)
|
||||
item[self._expiration_time_field] = int(expiration_time.timestamp())
|
||||
self._table.put_item(Item=item, **kwargs)
|
||||
return True
|
||||
except Exception:
|
||||
return False
|
||||
|
||||
def set(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> _t.Any:
|
||||
return self._set(self.key_prefix + key, value, timeout=timeout, overwrite=True)
|
||||
|
||||
def add(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> _t.Any:
|
||||
return self._set(self.key_prefix + key, value, timeout=timeout, overwrite=False)
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
return (
|
||||
self._get_item(self.key_prefix + key, [self._expiration_time_field])
|
||||
is not None
|
||||
)
|
||||
|
||||
def clear(self) -> bool:
|
||||
paginator = self._dynamo.meta.client.get_paginator("scan")
|
||||
pages = paginator.paginate(
|
||||
TableName=self._table_name, ProjectionExpression=self._key_field
|
||||
)
|
||||
|
||||
with self._table.batch_writer() as batch:
|
||||
for page in pages:
|
||||
for item in page["Items"]:
|
||||
batch.delete_item(Key=item)
|
||||
|
||||
return True
|
||||
@ -0,0 +1,348 @@
|
||||
import errno
|
||||
import hashlib
|
||||
import logging
|
||||
import os
|
||||
import platform
|
||||
import stat
|
||||
import struct
|
||||
import tempfile
|
||||
import typing as _t
|
||||
from contextlib import contextmanager
|
||||
from pathlib import Path
|
||||
from time import sleep
|
||||
from time import time
|
||||
|
||||
from cachelib.base import BaseCache
|
||||
from cachelib.serializers import FileSystemSerializer
|
||||
|
||||
|
||||
def _lazy_md5(string: bytes = b"") -> _t.Any:
|
||||
"""Don't access ``hashlib.md5`` until runtime. FIPS builds may not include
|
||||
md5, in which case the import and use as a default would fail before the
|
||||
developer can configure something else.
|
||||
"""
|
||||
return hashlib.md5(string)
|
||||
|
||||
|
||||
class FileSystemCache(BaseCache):
|
||||
"""A cache that stores the items on the file system. This cache depends
|
||||
on being the only user of the `cache_dir`. Make absolutely sure that
|
||||
nobody but this cache stores files there or otherwise the cache will
|
||||
randomly delete files therein.
|
||||
|
||||
:param cache_dir: the directory where cache files are stored.
|
||||
:param threshold: the maximum number of items the cache stores before
|
||||
it starts deleting some. A threshold value of 0
|
||||
indicates no threshold.
|
||||
:param default_timeout: the default timeout that is used if no timeout is
|
||||
specified on :meth:`~BaseCache.set`. A timeout of
|
||||
0 indicates that the cache never expires.
|
||||
:param mode: the file mode wanted for the cache files, default 0600
|
||||
:param hash_method: Default hashlib.md5. The hash method used to
|
||||
generate the filename for cached results.
|
||||
Default is lazy loaded and can be overriden by
|
||||
seeting `_default_hash_method`
|
||||
"""
|
||||
|
||||
#: used for temporary files by the FileSystemCache
|
||||
_fs_transaction_suffix = ".__wz_cache"
|
||||
#: keep amount of files in a cache element
|
||||
_fs_count_file = "__wz_cache_count"
|
||||
#: default file name hashing method
|
||||
_default_hash_method = staticmethod(_lazy_md5)
|
||||
|
||||
serializer = FileSystemSerializer()
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
cache_dir: str,
|
||||
threshold: int = 500,
|
||||
default_timeout: int = 300,
|
||||
mode: _t.Optional[int] = None,
|
||||
hash_method: _t.Any = None,
|
||||
):
|
||||
BaseCache.__init__(self, default_timeout)
|
||||
self._path = cache_dir
|
||||
self._threshold = threshold
|
||||
|
||||
self._hash_method = self._default_hash_method
|
||||
if hash_method is not None:
|
||||
self._hash_method = hash_method
|
||||
|
||||
# Mode set by user takes precedence. If no mode has
|
||||
# been given, we need to set the correct default based
|
||||
# on user platform.
|
||||
self._mode = mode
|
||||
if self._mode is None:
|
||||
self._mode = self._get_compatible_platform_mode()
|
||||
|
||||
try:
|
||||
os.makedirs(self._path)
|
||||
except OSError as ex:
|
||||
if ex.errno != errno.EEXIST:
|
||||
raise
|
||||
|
||||
# If there are many files and a zero threshold,
|
||||
# the list_dir can slow initialisation massively
|
||||
if self._threshold != 0:
|
||||
self._update_count(value=len(list(self._list_dir())))
|
||||
|
||||
def _get_compatible_platform_mode(self) -> int:
|
||||
mode = 0o600 # nix systems
|
||||
if platform.system() == "Windows":
|
||||
mode = stat.S_IWRITE
|
||||
return mode
|
||||
|
||||
@property
|
||||
def _file_count(self) -> int:
|
||||
return self.get(self._fs_count_file) or 0
|
||||
|
||||
def _update_count(
|
||||
self, delta: _t.Optional[int] = None, value: _t.Optional[int] = None
|
||||
) -> None:
|
||||
# If we have no threshold, don't count files
|
||||
if self._threshold == 0:
|
||||
return
|
||||
if delta:
|
||||
new_count = self._file_count + delta
|
||||
else:
|
||||
new_count = value or 0
|
||||
self.set(self._fs_count_file, new_count, mgmt_element=True)
|
||||
|
||||
def _normalize_timeout(self, timeout: _t.Optional[int]) -> int:
|
||||
timeout = BaseCache._normalize_timeout(self, timeout)
|
||||
if timeout != 0:
|
||||
timeout = int(time()) + timeout
|
||||
return int(timeout)
|
||||
|
||||
def _is_mgmt(self, name: str) -> bool:
|
||||
fshash = self._get_filename(self._fs_count_file).split(os.sep)[-1]
|
||||
return name == fshash or name.endswith(self._fs_transaction_suffix)
|
||||
|
||||
def _list_dir(self) -> _t.Generator[str, None, None]:
|
||||
"""return a list of (fully qualified) cache filenames"""
|
||||
return (
|
||||
os.path.join(self._path, fn)
|
||||
for fn in os.listdir(self._path)
|
||||
if not self._is_mgmt(fn)
|
||||
)
|
||||
|
||||
def _over_threshold(self) -> bool:
|
||||
return self._threshold != 0 and self._file_count > self._threshold
|
||||
|
||||
def _remove_expired(self, now: float) -> None:
|
||||
for fname in self._list_dir():
|
||||
try:
|
||||
with self._safe_stream_open(fname, "rb") as f:
|
||||
expires = struct.unpack("I", f.read(4))[0]
|
||||
if expires != 0 and expires < now:
|
||||
os.remove(fname)
|
||||
self._update_count(delta=-1)
|
||||
except FileNotFoundError:
|
||||
pass
|
||||
except (OSError, EOFError, struct.error):
|
||||
logging.warning(
|
||||
"Exception raised while handling cache file '%s'",
|
||||
fname,
|
||||
exc_info=True,
|
||||
)
|
||||
|
||||
def _remove_older(self) -> bool:
|
||||
exp_fname_tuples = []
|
||||
for fname in self._list_dir():
|
||||
try:
|
||||
with self._safe_stream_open(fname, "rb") as f:
|
||||
timestamp = struct.unpack("I", f.read(4))[0]
|
||||
exp_fname_tuples.append((timestamp, fname))
|
||||
except FileNotFoundError:
|
||||
pass
|
||||
except (OSError, EOFError, struct.error):
|
||||
logging.warning(
|
||||
"Exception raised while handling cache file '%s'",
|
||||
fname,
|
||||
exc_info=True,
|
||||
)
|
||||
fname_sorted = (
|
||||
fname for _, fname in sorted(exp_fname_tuples, key=lambda item: item[0])
|
||||
)
|
||||
for fname in fname_sorted:
|
||||
try:
|
||||
os.remove(fname)
|
||||
self._update_count(delta=-1)
|
||||
except FileNotFoundError:
|
||||
pass
|
||||
except OSError:
|
||||
logging.warning(
|
||||
"Exception raised while handling cache file '%s'",
|
||||
fname,
|
||||
exc_info=True,
|
||||
)
|
||||
return False
|
||||
if not self._over_threshold():
|
||||
break
|
||||
return True
|
||||
|
||||
def _prune(self) -> None:
|
||||
if self._over_threshold():
|
||||
now = time()
|
||||
self._remove_expired(now)
|
||||
# if still over threshold
|
||||
if self._over_threshold():
|
||||
self._remove_older()
|
||||
|
||||
def clear(self) -> bool:
|
||||
for i, fname in enumerate(self._list_dir()):
|
||||
try:
|
||||
os.remove(fname)
|
||||
except FileNotFoundError:
|
||||
pass
|
||||
except OSError:
|
||||
logging.warning(
|
||||
"Exception raised while handling cache file '%s'",
|
||||
fname,
|
||||
exc_info=True,
|
||||
)
|
||||
self._update_count(delta=-i)
|
||||
return False
|
||||
self._update_count(value=0)
|
||||
return True
|
||||
|
||||
def _get_filename(self, key: str) -> str:
|
||||
if isinstance(key, str):
|
||||
bkey = key.encode("utf-8") # XXX unicode review
|
||||
bkey_hash = self._hash_method(bkey).hexdigest()
|
||||
else:
|
||||
raise TypeError(f"Key must be a string, received type {type(key)}")
|
||||
return os.path.join(self._path, bkey_hash)
|
||||
|
||||
def get(self, key: str) -> _t.Any:
|
||||
filename = self._get_filename(key)
|
||||
try:
|
||||
with self._safe_stream_open(filename, "rb") as f:
|
||||
pickle_time = struct.unpack("I", f.read(4))[0]
|
||||
if pickle_time == 0 or pickle_time >= time():
|
||||
return self.serializer.load(f)
|
||||
except FileNotFoundError:
|
||||
pass
|
||||
except (OSError, EOFError, struct.error):
|
||||
logging.warning(
|
||||
"Exception raised while handling cache file '%s'",
|
||||
filename,
|
||||
exc_info=True,
|
||||
)
|
||||
return None
|
||||
|
||||
def add(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> bool:
|
||||
filename = self._get_filename(key)
|
||||
if not os.path.exists(filename):
|
||||
return self.set(key, value, timeout)
|
||||
return False
|
||||
|
||||
def set(
|
||||
self,
|
||||
key: str,
|
||||
value: _t.Any,
|
||||
timeout: _t.Optional[int] = None,
|
||||
mgmt_element: bool = False,
|
||||
) -> bool:
|
||||
# Management elements have no timeout
|
||||
if mgmt_element:
|
||||
timeout = 0
|
||||
# Don't prune on management element update, to avoid loop
|
||||
else:
|
||||
self._prune()
|
||||
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
filename = self._get_filename(key)
|
||||
overwrite = os.path.isfile(filename)
|
||||
|
||||
try:
|
||||
fd, tmp = tempfile.mkstemp(
|
||||
suffix=self._fs_transaction_suffix, dir=self._path
|
||||
)
|
||||
with os.fdopen(fd, "wb") as f:
|
||||
f.write(struct.pack("I", timeout))
|
||||
self.serializer.dump(value, f)
|
||||
|
||||
self._run_safely(os.replace, tmp, filename)
|
||||
self._run_safely(os.chmod, filename, self._mode)
|
||||
|
||||
fsize = Path(filename).stat().st_size
|
||||
except OSError:
|
||||
logging.warning(
|
||||
"Exception raised while handling cache file '%s'",
|
||||
filename,
|
||||
exc_info=True,
|
||||
)
|
||||
return False
|
||||
else:
|
||||
# Management elements should not count towards threshold
|
||||
if not overwrite and not mgmt_element:
|
||||
self._update_count(delta=1)
|
||||
return fsize > 0 # function should fail if file is empty
|
||||
|
||||
def delete(self, key: str, mgmt_element: bool = False) -> bool:
|
||||
try:
|
||||
os.remove(self._get_filename(key))
|
||||
except FileNotFoundError: # if file doesn't exist we consider it deleted
|
||||
return True
|
||||
except OSError:
|
||||
logging.warning("Exception raised while handling cache file", exc_info=True)
|
||||
return False
|
||||
else:
|
||||
# Management elements should not count towards threshold
|
||||
if not mgmt_element:
|
||||
self._update_count(delta=-1)
|
||||
return True
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
filename = self._get_filename(key)
|
||||
try:
|
||||
with self._safe_stream_open(filename, "rb") as f:
|
||||
pickle_time = struct.unpack("I", f.read(4))[0]
|
||||
if pickle_time == 0 or pickle_time >= time():
|
||||
return True
|
||||
else:
|
||||
return False
|
||||
except FileNotFoundError: # if there is no file there is no key
|
||||
return False
|
||||
except (OSError, EOFError, struct.error):
|
||||
logging.warning(
|
||||
"Exception raised while handling cache file '%s'",
|
||||
filename,
|
||||
exc_info=True,
|
||||
)
|
||||
return False
|
||||
|
||||
def _run_safely(self, fn: _t.Callable, *args: _t.Any, **kwargs: _t.Any) -> _t.Any:
|
||||
"""On Windows os.replace, os.chmod and open can yield
|
||||
permission errors if executed by two different processes."""
|
||||
if platform.system() == "Windows":
|
||||
output = None
|
||||
wait_step = 0.001
|
||||
max_sleep_time = 10.0
|
||||
total_sleep_time = 0.0
|
||||
|
||||
while total_sleep_time < max_sleep_time:
|
||||
try:
|
||||
output = fn(*args, **kwargs)
|
||||
except PermissionError:
|
||||
sleep(wait_step)
|
||||
total_sleep_time += wait_step
|
||||
wait_step *= 2
|
||||
else:
|
||||
break
|
||||
else:
|
||||
output = fn(*args, **kwargs)
|
||||
|
||||
return output
|
||||
|
||||
@contextmanager
|
||||
def _safe_stream_open(self, path: str, mode: str) -> _t.Generator:
|
||||
fs = self._run_safely(open, path, mode)
|
||||
if fs is None:
|
||||
raise OSError
|
||||
try:
|
||||
yield fs
|
||||
finally:
|
||||
fs.close()
|
||||
@ -0,0 +1,196 @@
|
||||
import re
|
||||
import typing as _t
|
||||
from time import time
|
||||
|
||||
from cachelib.base import BaseCache
|
||||
|
||||
|
||||
_test_memcached_key = re.compile(r"[^\x00-\x21\xff]{1,250}$").match
|
||||
|
||||
|
||||
class MemcachedCache(BaseCache):
|
||||
"""A cache that uses memcached as backend.
|
||||
|
||||
The first argument can either be an object that resembles the API of a
|
||||
:class:`memcache.Client` or a tuple/list of server addresses. In the
|
||||
event that a tuple/list is passed, Werkzeug tries to import the best
|
||||
available memcache library.
|
||||
|
||||
This cache looks into the following packages/modules to find bindings for
|
||||
memcached:
|
||||
|
||||
- ``pylibmc``
|
||||
- ``google.appengine.api.memcached``
|
||||
- ``memcached``
|
||||
- ``libmc``
|
||||
|
||||
Implementation notes: This cache backend works around some limitations in
|
||||
memcached to simplify the interface. For example unicode keys are encoded
|
||||
to utf-8 on the fly. Methods such as :meth:`~BaseCache.get_dict` return
|
||||
the keys in the same format as passed. Furthermore all get methods
|
||||
silently ignore key errors to not cause problems when untrusted user data
|
||||
is passed to the get methods which is often the case in web applications.
|
||||
|
||||
:param servers: a list or tuple of server addresses or alternatively
|
||||
a :class:`memcache.Client` or a compatible client.
|
||||
:param default_timeout: the default timeout that is used if no timeout is
|
||||
specified on :meth:`~BaseCache.set`. A timeout of
|
||||
0 indicates that the cache never expires.
|
||||
:param key_prefix: a prefix that is added before all keys. This makes it
|
||||
possible to use the same memcached server for different
|
||||
applications. Keep in mind that
|
||||
:meth:`~BaseCache.clear` will also clear keys with a
|
||||
different prefix.
|
||||
"""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
servers: _t.Any = None,
|
||||
default_timeout: int = 300,
|
||||
key_prefix: _t.Optional[str] = None,
|
||||
):
|
||||
BaseCache.__init__(self, default_timeout)
|
||||
if servers is None or isinstance(servers, (list, tuple)):
|
||||
if servers is None:
|
||||
servers = ["127.0.0.1:11211"]
|
||||
self._client = self.import_preferred_memcache_lib(servers)
|
||||
if self._client is None:
|
||||
raise RuntimeError("no memcache module found")
|
||||
else:
|
||||
# NOTE: servers is actually an already initialized memcache
|
||||
# client.
|
||||
self._client = servers
|
||||
|
||||
self.key_prefix = key_prefix
|
||||
|
||||
def _normalize_key(self, key: str) -> str:
|
||||
if self.key_prefix:
|
||||
key = self.key_prefix + key
|
||||
return key
|
||||
|
||||
def _normalize_timeout(self, timeout: _t.Optional[int]) -> int:
|
||||
timeout = BaseCache._normalize_timeout(self, timeout)
|
||||
if timeout > 0:
|
||||
timeout = int(time()) + timeout
|
||||
return timeout
|
||||
|
||||
def get(self, key: str) -> _t.Any:
|
||||
key = self._normalize_key(key)
|
||||
# memcached doesn't support keys longer than that. Because often
|
||||
# checks for so long keys can occur because it's tested from user
|
||||
# submitted data etc we fail silently for getting.
|
||||
if _test_memcached_key(key):
|
||||
return self._client.get(key)
|
||||
|
||||
def get_dict(self, *keys: str) -> _t.Dict[str, _t.Any]:
|
||||
key_mapping = {}
|
||||
for key in keys:
|
||||
encoded_key = self._normalize_key(key)
|
||||
if _test_memcached_key(key):
|
||||
key_mapping[encoded_key] = key
|
||||
_keys = list(key_mapping)
|
||||
d = rv = self._client.get_multi(_keys) # type: _t.Dict[str, _t.Any]
|
||||
if self.key_prefix:
|
||||
rv = {}
|
||||
for key, value in d.items():
|
||||
rv[key_mapping[key]] = value
|
||||
if len(rv) < len(keys):
|
||||
for key in keys:
|
||||
if key not in rv:
|
||||
rv[key] = None
|
||||
return rv
|
||||
|
||||
def add(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> bool:
|
||||
key = self._normalize_key(key)
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
return bool(self._client.add(key, value, timeout))
|
||||
|
||||
def set(
|
||||
self, key: str, value: _t.Any, timeout: _t.Optional[int] = None
|
||||
) -> _t.Optional[bool]:
|
||||
key = self._normalize_key(key)
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
return bool(self._client.set(key, value, timeout))
|
||||
|
||||
def get_many(self, *keys: str) -> _t.List[_t.Any]:
|
||||
d = self.get_dict(*keys)
|
||||
return [d[key] for key in keys]
|
||||
|
||||
def set_many(
|
||||
self, mapping: _t.Dict[str, _t.Any], timeout: _t.Optional[int] = None
|
||||
) -> _t.List[_t.Any]:
|
||||
new_mapping = {}
|
||||
for key, value in mapping.items():
|
||||
key = self._normalize_key(key)
|
||||
new_mapping[key] = value
|
||||
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
failed_keys = self._client.set_multi(
|
||||
new_mapping, timeout
|
||||
) # type: _t.List[_t.Any]
|
||||
k_normkey = zip(mapping.keys(), new_mapping.keys()) # noqa: B905
|
||||
return [k for k, nkey in k_normkey if nkey not in failed_keys]
|
||||
|
||||
def delete(self, key: str) -> bool:
|
||||
key = self._normalize_key(key)
|
||||
if _test_memcached_key(key):
|
||||
return bool(self._client.delete(key))
|
||||
return False
|
||||
|
||||
def delete_many(self, *keys: str) -> _t.List[_t.Any]:
|
||||
new_keys = []
|
||||
for key in keys:
|
||||
key = self._normalize_key(key)
|
||||
if _test_memcached_key(key):
|
||||
new_keys.append(key)
|
||||
self._client.delete_multi(new_keys)
|
||||
return [k for k in new_keys if not self.has(k)]
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
key = self._normalize_key(key)
|
||||
if _test_memcached_key(key):
|
||||
return bool(self._client.append(key, ""))
|
||||
return False
|
||||
|
||||
def clear(self) -> bool:
|
||||
return bool(self._client.flush_all())
|
||||
|
||||
def inc(self, key: str, delta: int = 1) -> _t.Optional[int]:
|
||||
key = self._normalize_key(key)
|
||||
value = (self._client.get(key) or 0) + delta
|
||||
return value if self.set(key, value) else None
|
||||
|
||||
def dec(self, key: str, delta: int = 1) -> _t.Optional[int]:
|
||||
key = self._normalize_key(key)
|
||||
value = (self._client.get(key) or 0) - delta
|
||||
return value if self.set(key, value) else None
|
||||
|
||||
def import_preferred_memcache_lib(self, servers: _t.Any) -> _t.Any:
|
||||
"""Returns an initialized memcache client. Used by the constructor."""
|
||||
try:
|
||||
import pylibmc # type: ignore
|
||||
except ImportError:
|
||||
pass
|
||||
else:
|
||||
return pylibmc.Client(servers)
|
||||
|
||||
try:
|
||||
from google.appengine.api import memcache # type: ignore
|
||||
except ImportError:
|
||||
pass
|
||||
else:
|
||||
return memcache.Client()
|
||||
|
||||
try:
|
||||
import memcache # type: ignore
|
||||
except ImportError:
|
||||
pass
|
||||
else:
|
||||
return memcache.Client(servers)
|
||||
|
||||
try:
|
||||
import libmc # type: ignore
|
||||
except ImportError:
|
||||
pass
|
||||
else:
|
||||
return libmc.Client(servers)
|
||||
@ -0,0 +1,202 @@
|
||||
import datetime
|
||||
import logging
|
||||
import typing as _t
|
||||
|
||||
from cachelib.base import BaseCache
|
||||
from cachelib.serializers import BaseSerializer
|
||||
|
||||
|
||||
class MongoDbCache(BaseCache):
|
||||
"""
|
||||
Implementation of cachelib.BaseCache that uses mongodb collection
|
||||
as the backend.
|
||||
|
||||
Limitations: maximum MongoDB document size is 16mb
|
||||
|
||||
:param client: mongodb client or connection string
|
||||
:param db: mongodb database name
|
||||
:param collection: mongodb collection name
|
||||
:param default_timeout: Set the timeout in seconds after which cache entries
|
||||
expire
|
||||
:param key_prefix: A prefix that should be added to all keys.
|
||||
|
||||
"""
|
||||
|
||||
serializer = BaseSerializer()
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
client: _t.Any = None,
|
||||
db: _t.Optional[str] = "cache-db",
|
||||
collection: _t.Optional[str] = "cache-collection",
|
||||
default_timeout: int = 300,
|
||||
key_prefix: _t.Optional[str] = None,
|
||||
**kwargs: _t.Any
|
||||
):
|
||||
super().__init__(default_timeout)
|
||||
try:
|
||||
import pymongo # type: ignore
|
||||
except ImportError:
|
||||
logging.warning("no pymongo module found")
|
||||
|
||||
if client is None or isinstance(client, str):
|
||||
client = pymongo.MongoClient(host=client)
|
||||
self.client = client[db][collection]
|
||||
index_info = self.client.index_information()
|
||||
all_keys = {
|
||||
subkey[0] for value in index_info.values() for subkey in value["key"]
|
||||
}
|
||||
if "id" not in all_keys:
|
||||
self.client.create_index("id", unique=True)
|
||||
self.key_prefix = key_prefix or ""
|
||||
self.collection = collection
|
||||
|
||||
def _utcnow(self) -> _t.Any:
|
||||
"""Return a tz-aware UTC datetime representing the current time"""
|
||||
return datetime.datetime.utcnow().replace(tzinfo=datetime.timezone.utc)
|
||||
|
||||
def _expire_records(self) -> _t.Any:
|
||||
res = self.client.delete_many({"expiration": {"$lte": self._utcnow()}})
|
||||
return res
|
||||
|
||||
def get(self, key: str) -> _t.Any:
|
||||
"""
|
||||
Get a cache item
|
||||
|
||||
:param key: The cache key of the item to fetch
|
||||
:return: cache value if not expired, else None
|
||||
"""
|
||||
self._expire_records()
|
||||
record = self.client.find_one({"id": self.key_prefix + key})
|
||||
value = None
|
||||
if record:
|
||||
value = self.serializer.loads(record["val"])
|
||||
return value
|
||||
|
||||
def delete(self, key: str) -> bool:
|
||||
"""
|
||||
Deletes an item from the cache. This is a no-op if the item doesn't
|
||||
exist
|
||||
|
||||
:param key: Key of the item to delete.
|
||||
:return: True if the key existed and was deleted
|
||||
"""
|
||||
res = self.client.delete_one({"id": self.key_prefix + key})
|
||||
deleted = bool(res.deleted_count > 0)
|
||||
return deleted
|
||||
|
||||
def _set(
|
||||
self,
|
||||
key: str,
|
||||
value: _t.Any,
|
||||
timeout: _t.Optional[int] = None,
|
||||
overwrite: _t.Optional[bool] = True,
|
||||
) -> _t.Any:
|
||||
"""
|
||||
Store a cache item, with the option to not overwrite existing items
|
||||
|
||||
:param key: Cache key to use
|
||||
:param value: a serializable object
|
||||
:param timeout: The timeout in seconds for the cached item, to override
|
||||
the default
|
||||
:param overwrite: If true, overwrite any existing cache item with key.
|
||||
If false, the new value will only be stored if no
|
||||
non-expired cache item exists with key.
|
||||
:return: True if the new item was stored.
|
||||
"""
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
now = self._utcnow()
|
||||
|
||||
if not overwrite:
|
||||
# fail if a non-expired item with this key
|
||||
# already exists
|
||||
if self.has(key):
|
||||
return False
|
||||
|
||||
dump = self.serializer.dumps(value)
|
||||
record = {"id": self.key_prefix + key, "val": dump}
|
||||
|
||||
if timeout > 0:
|
||||
record["expiration"] = now + datetime.timedelta(seconds=timeout)
|
||||
self.client.update_one({"id": self.key_prefix + key}, {"$set": record}, True)
|
||||
return True
|
||||
|
||||
def set(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> _t.Any:
|
||||
self._expire_records()
|
||||
return self._set(key, value, timeout=timeout, overwrite=True)
|
||||
|
||||
def set_many(
|
||||
self, mapping: _t.Dict[str, _t.Any], timeout: _t.Optional[int] = None
|
||||
) -> _t.List[_t.Any]:
|
||||
self._expire_records()
|
||||
from pymongo import UpdateOne
|
||||
|
||||
operations = []
|
||||
now = self._utcnow()
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
for key, val in mapping.items():
|
||||
dump = self.serializer.dumps(val)
|
||||
|
||||
record = {"id": self.key_prefix + key, "val": dump}
|
||||
|
||||
if timeout > 0:
|
||||
record["expiration"] = now + datetime.timedelta(seconds=timeout)
|
||||
operations.append(
|
||||
UpdateOne({"id": self.key_prefix + key}, {"$set": record}, upsert=True),
|
||||
)
|
||||
|
||||
result = self.client.bulk_write(operations)
|
||||
keys = list(mapping.keys())
|
||||
if result.bulk_api_result["nUpserted"] != len(keys):
|
||||
query = self.client.find(
|
||||
{"id": {"$in": [self.key_prefix + key for key in keys]}}
|
||||
)
|
||||
keys = []
|
||||
for item in query:
|
||||
keys.append(item["id"])
|
||||
return keys
|
||||
|
||||
def get_many(self, *keys: str) -> _t.List[_t.Any]:
|
||||
results = self.get_dict(*keys)
|
||||
values = []
|
||||
for key in keys:
|
||||
values.append(results.get(key, None))
|
||||
return values
|
||||
|
||||
def get_dict(self, *keys: str) -> _t.Dict[str, _t.Any]:
|
||||
self._expire_records()
|
||||
query = self.client.find(
|
||||
{"id": {"$in": [self.key_prefix + key for key in keys]}}
|
||||
)
|
||||
results = dict.fromkeys(keys, None)
|
||||
for item in query:
|
||||
value = self.serializer.loads(item["val"])
|
||||
results[item["id"][len(self.key_prefix) :]] = value
|
||||
return results
|
||||
|
||||
def add(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> _t.Any:
|
||||
self._expire_records()
|
||||
return self._set(key, value, timeout=timeout, overwrite=False)
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
self._expire_records()
|
||||
record = self.get(key)
|
||||
return record is not None
|
||||
|
||||
def delete_many(self, *keys: str) -> _t.List[_t.Any]:
|
||||
self._expire_records()
|
||||
res = list(keys)
|
||||
filter = {"id": {"$in": [self.key_prefix + key for key in keys]}}
|
||||
result = self.client.delete_many(filter)
|
||||
|
||||
if result.deleted_count != len(keys):
|
||||
existing_keys = [
|
||||
item["id"][len(self.key_prefix) :] for item in self.client.find(filter)
|
||||
]
|
||||
res = [item for item in keys if item not in existing_keys]
|
||||
|
||||
return res
|
||||
|
||||
def clear(self) -> bool:
|
||||
self.client.drop()
|
||||
return True
|
||||
@ -0,0 +1,159 @@
|
||||
import typing as _t
|
||||
|
||||
from cachelib.base import BaseCache
|
||||
from cachelib.serializers import RedisSerializer
|
||||
|
||||
|
||||
class RedisCache(BaseCache):
|
||||
"""Uses the Redis key-value store as a cache backend.
|
||||
|
||||
The first argument can be either a string denoting address of the Redis
|
||||
server or an object resembling an instance of a redis.Redis class.
|
||||
|
||||
Note: Python Redis API already takes care of encoding unicode strings on
|
||||
the fly.
|
||||
|
||||
:param host: address of the Redis server or an object which API is
|
||||
compatible with the official Python Redis client (redis-py).
|
||||
:param port: port number on which Redis server listens for connections.
|
||||
:param password: password authentication for the Redis server.
|
||||
:param db: db (zero-based numeric index) on Redis Server to connect.
|
||||
:param default_timeout: the default timeout that is used if no timeout is
|
||||
specified on :meth:`~BaseCache.set`. A timeout of
|
||||
0 indicates that the cache never expires.
|
||||
:param key_prefix: A prefix that should be added to all keys.
|
||||
|
||||
Any additional keyword arguments will be passed to ``redis.Redis``.
|
||||
"""
|
||||
|
||||
_read_client: _t.Any = None
|
||||
_write_client: _t.Any = None
|
||||
serializer = RedisSerializer()
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
host: _t.Any = "localhost",
|
||||
port: int = 6379,
|
||||
password: _t.Optional[str] = None,
|
||||
db: int = 0,
|
||||
default_timeout: int = 300,
|
||||
key_prefix: _t.Optional[_t.Union[str, _t.Callable[[], str]]] = None,
|
||||
**kwargs: _t.Any,
|
||||
):
|
||||
BaseCache.__init__(self, default_timeout)
|
||||
if host is None:
|
||||
raise ValueError("RedisCache host parameter may not be None")
|
||||
if isinstance(host, str):
|
||||
try:
|
||||
import redis
|
||||
except ImportError as err:
|
||||
raise RuntimeError("no redis module found") from err
|
||||
if kwargs.get("decode_responses", None):
|
||||
raise ValueError("decode_responses is not supported by RedisCache.")
|
||||
self._write_client = self._read_client = redis.Redis(
|
||||
host=host, port=port, password=password, db=db, **kwargs
|
||||
)
|
||||
else:
|
||||
self._read_client = self._write_client = host
|
||||
self.key_prefix = key_prefix or ""
|
||||
|
||||
def _get_prefix(self) -> str:
|
||||
return (
|
||||
self.key_prefix if isinstance(self.key_prefix, str) else self.key_prefix()
|
||||
)
|
||||
|
||||
def _normalize_timeout(self, timeout: _t.Optional[int]) -> int:
|
||||
"""Normalize timeout by setting it to default of 300 if
|
||||
not defined (None) or -1 if explicitly set to zero.
|
||||
|
||||
:param timeout: timeout to normalize.
|
||||
"""
|
||||
timeout = BaseCache._normalize_timeout(self, timeout)
|
||||
if timeout == 0:
|
||||
timeout = -1
|
||||
return timeout
|
||||
|
||||
def get(self, key: str) -> _t.Any:
|
||||
return self.serializer.loads(
|
||||
self._read_client.get(f"{self._get_prefix()}{key}")
|
||||
)
|
||||
|
||||
def get_many(self, *keys: str) -> _t.List[_t.Any]:
|
||||
if self.key_prefix:
|
||||
prefixed_keys = [f"{self._get_prefix()}{key}" for key in keys]
|
||||
else:
|
||||
prefixed_keys = list(keys)
|
||||
return [self.serializer.loads(x) for x in self._read_client.mget(prefixed_keys)]
|
||||
|
||||
def set(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> _t.Any:
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
dump = self.serializer.dumps(value)
|
||||
if timeout == -1:
|
||||
result = self._write_client.set(
|
||||
name=f"{self._get_prefix()}{key}", value=dump
|
||||
)
|
||||
else:
|
||||
result = self._write_client.setex(
|
||||
name=f"{self._get_prefix()}{key}", value=dump, time=timeout
|
||||
)
|
||||
return result
|
||||
|
||||
def add(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> _t.Any:
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
dump = self.serializer.dumps(value)
|
||||
created = self._write_client.setnx(
|
||||
name=f"{self._get_prefix()}{key}", value=dump
|
||||
)
|
||||
# handle case where timeout is explicitly set to zero
|
||||
if created and timeout != -1:
|
||||
self._write_client.expire(name=f"{self._get_prefix()}{key}", time=timeout)
|
||||
return created
|
||||
|
||||
def set_many(
|
||||
self, mapping: _t.Dict[str, _t.Any], timeout: _t.Optional[int] = None
|
||||
) -> _t.List[_t.Any]:
|
||||
timeout = self._normalize_timeout(timeout)
|
||||
# Use transaction=False to batch without calling redis MULTI
|
||||
# which is not supported by twemproxy
|
||||
pipe = self._write_client.pipeline(transaction=False)
|
||||
|
||||
for key, value in mapping.items():
|
||||
dump = self.serializer.dumps(value)
|
||||
if timeout == -1:
|
||||
pipe.set(name=f"{self._get_prefix()}{key}", value=dump)
|
||||
else:
|
||||
pipe.setex(name=f"{self._get_prefix()}{key}", value=dump, time=timeout)
|
||||
results = pipe.execute()
|
||||
return [k for k, was_set in zip(mapping.keys(), results) if was_set]
|
||||
|
||||
def delete(self, key: str) -> bool:
|
||||
return bool(self._write_client.delete(f"{self._get_prefix()}{key}"))
|
||||
|
||||
def delete_many(self, *keys: str) -> _t.List[_t.Any]:
|
||||
if not keys:
|
||||
return []
|
||||
if self.key_prefix:
|
||||
prefixed_keys = [f"{self._get_prefix()}{key}" for key in keys]
|
||||
else:
|
||||
prefixed_keys = [k for k in keys]
|
||||
self._write_client.delete(*prefixed_keys)
|
||||
return [k for k in prefixed_keys if not self.has(k)]
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
return bool(self._read_client.exists(f"{self._get_prefix()}{key}"))
|
||||
|
||||
def clear(self) -> bool:
|
||||
status = 0
|
||||
if self.key_prefix:
|
||||
keys = self._read_client.keys(self._get_prefix() + "*")
|
||||
if keys:
|
||||
status = self._write_client.delete(*keys)
|
||||
else:
|
||||
status = self._write_client.flushdb()
|
||||
return bool(status)
|
||||
|
||||
def inc(self, key: str, delta: int = 1) -> _t.Any:
|
||||
return self._write_client.incr(name=f"{self._get_prefix()}{key}", amount=delta)
|
||||
|
||||
def dec(self, key: str, delta: int = 1) -> _t.Any:
|
||||
return self._write_client.incr(name=f"{self._get_prefix()}{key}", amount=-delta)
|
||||
@ -0,0 +1,112 @@
|
||||
import logging
|
||||
import pickle
|
||||
import typing as _t
|
||||
|
||||
|
||||
class BaseSerializer:
|
||||
"""This is the base interface for all default serializers.
|
||||
|
||||
BaseSerializer.load and BaseSerializer.dump will
|
||||
default to pickle.load and pickle.dump. This is currently
|
||||
used only by FileSystemCache which dumps/loads to/from a file stream.
|
||||
"""
|
||||
|
||||
def _warn(self, e: pickle.PickleError) -> None:
|
||||
logging.warning(
|
||||
f"An exception has been raised during a pickling operation: {e}"
|
||||
)
|
||||
|
||||
def dump(
|
||||
self, value: int, f: _t.IO, protocol: int = pickle.HIGHEST_PROTOCOL
|
||||
) -> None:
|
||||
try:
|
||||
pickle.dump(value, f, protocol)
|
||||
except (pickle.PickleError, pickle.PicklingError) as e:
|
||||
self._warn(e)
|
||||
|
||||
def load(self, f: _t.BinaryIO) -> _t.Any:
|
||||
try:
|
||||
data = pickle.load(f)
|
||||
except pickle.PickleError as e:
|
||||
self._warn(e)
|
||||
return None
|
||||
else:
|
||||
return data
|
||||
|
||||
"""BaseSerializer.loads and BaseSerializer.dumps
|
||||
work on top of pickle.loads and pickle.dumps. Dumping/loading
|
||||
strings and byte strings is the default for most cache types.
|
||||
"""
|
||||
|
||||
def dumps(self, value: _t.Any, protocol: int = pickle.HIGHEST_PROTOCOL) -> bytes:
|
||||
try:
|
||||
serialized = pickle.dumps(value, protocol)
|
||||
except (pickle.PickleError, pickle.PicklingError) as e:
|
||||
self._warn(e)
|
||||
return serialized
|
||||
|
||||
def loads(self, bvalue: bytes) -> _t.Any:
|
||||
try:
|
||||
data = pickle.loads(bvalue)
|
||||
except pickle.PickleError as e:
|
||||
self._warn(e)
|
||||
return None
|
||||
else:
|
||||
return data
|
||||
|
||||
|
||||
"""Default serializers for each cache type.
|
||||
|
||||
The following classes can be used to further customize
|
||||
serialiation behaviour. Alternatively, any serializer can be
|
||||
overriden in order to use a custom serializer with a different
|
||||
strategy altogether.
|
||||
"""
|
||||
|
||||
|
||||
class UWSGISerializer(BaseSerializer):
|
||||
"""Default serializer for UWSGICache."""
|
||||
|
||||
|
||||
class SimpleSerializer(BaseSerializer):
|
||||
"""Default serializer for SimpleCache."""
|
||||
|
||||
|
||||
class FileSystemSerializer(BaseSerializer):
|
||||
"""Default serializer for FileSystemCache."""
|
||||
|
||||
|
||||
class RedisSerializer(BaseSerializer):
|
||||
"""Default serializer for RedisCache."""
|
||||
|
||||
def dumps(self, value: _t.Any, protocol: int = pickle.HIGHEST_PROTOCOL) -> bytes:
|
||||
"""Dumps an object into a string for redis, using pickle by default."""
|
||||
return b"!" + pickle.dumps(value, protocol)
|
||||
|
||||
def loads(self, value: _t.Optional[bytes]) -> _t.Any:
|
||||
"""The reversal of :meth:`dump_object`. This might be called with
|
||||
None.
|
||||
"""
|
||||
if value is None:
|
||||
return None
|
||||
if value.startswith(b"!"):
|
||||
try:
|
||||
return pickle.loads(value[1:])
|
||||
except pickle.PickleError:
|
||||
return None
|
||||
try:
|
||||
return int(value)
|
||||
except ValueError:
|
||||
# before 0.8 we did not have serialization. Still support that.
|
||||
return value
|
||||
|
||||
|
||||
class DynamoDbSerializer(RedisSerializer):
|
||||
"""Default serializer for DynamoDbCache."""
|
||||
|
||||
def loads(self, value: _t.Any) -> _t.Any:
|
||||
"""The reversal of :meth:`dump_object`. This might be called with
|
||||
None.
|
||||
"""
|
||||
value = value.value
|
||||
return super().loads(value)
|
||||
@ -0,0 +1,100 @@
|
||||
import typing as _t
|
||||
from time import time
|
||||
|
||||
from cachelib.base import BaseCache
|
||||
from cachelib.serializers import SimpleSerializer
|
||||
|
||||
|
||||
class SimpleCache(BaseCache):
|
||||
"""Simple memory cache for single process environments. This class exists
|
||||
mainly for the development server and is not 100% thread safe. It tries
|
||||
to use as many atomic operations as possible and no locks for simplicity
|
||||
but it could happen under heavy load that keys are added multiple times.
|
||||
|
||||
:param threshold: the maximum number of items the cache stores before
|
||||
it starts deleting some.
|
||||
:param default_timeout: the default timeout that is used if no timeout is
|
||||
specified on :meth:`~BaseCache.set`. A timeout of
|
||||
0 indicates that the cache never expires.
|
||||
"""
|
||||
|
||||
serializer = SimpleSerializer()
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
threshold: int = 500,
|
||||
default_timeout: int = 300,
|
||||
):
|
||||
BaseCache.__init__(self, default_timeout)
|
||||
self._cache: _t.Dict[str, _t.Any] = {}
|
||||
self._threshold = threshold or 500 # threshold = 0
|
||||
|
||||
def _over_threshold(self) -> bool:
|
||||
return len(self._cache) > self._threshold
|
||||
|
||||
def _remove_expired(self, now: float) -> None:
|
||||
toremove = [k for k, (expires, _) in self._cache.items() if expires < now]
|
||||
for k in toremove:
|
||||
self._cache.pop(k, None)
|
||||
|
||||
def _remove_older(self) -> None:
|
||||
k_ordered = (
|
||||
k for k, v in sorted(self._cache.items(), key=lambda item: item[1][0])
|
||||
)
|
||||
for k in k_ordered:
|
||||
self._cache.pop(k, None)
|
||||
if not self._over_threshold():
|
||||
break
|
||||
|
||||
def _prune(self) -> None:
|
||||
if self._over_threshold():
|
||||
now = time()
|
||||
self._remove_expired(now)
|
||||
# remove older items if still over threshold
|
||||
if self._over_threshold():
|
||||
self._remove_older()
|
||||
|
||||
def _normalize_timeout(self, timeout: _t.Optional[int]) -> int:
|
||||
timeout = BaseCache._normalize_timeout(self, timeout)
|
||||
if timeout > 0:
|
||||
timeout = int(time()) + timeout
|
||||
return timeout
|
||||
|
||||
def get(self, key: str) -> _t.Any:
|
||||
try:
|
||||
expires, value = self._cache[key]
|
||||
if expires == 0 or expires > time():
|
||||
return self.serializer.loads(value)
|
||||
except KeyError:
|
||||
return None
|
||||
|
||||
def set(
|
||||
self, key: str, value: _t.Any, timeout: _t.Optional[int] = None
|
||||
) -> _t.Optional[bool]:
|
||||
expires = self._normalize_timeout(timeout)
|
||||
self._prune()
|
||||
self._cache[key] = (expires, self.serializer.dumps(value))
|
||||
return True
|
||||
|
||||
def add(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> bool:
|
||||
expires = self._normalize_timeout(timeout)
|
||||
self._prune()
|
||||
item = (expires, self.serializer.dumps(value))
|
||||
if key in self._cache:
|
||||
return False
|
||||
self._cache.setdefault(key, item)
|
||||
return True
|
||||
|
||||
def delete(self, key: str) -> bool:
|
||||
return self._cache.pop(key, None) is not None
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
try:
|
||||
expires, value = self._cache[key]
|
||||
return bool(expires == 0 or expires > time())
|
||||
except KeyError:
|
||||
return False
|
||||
|
||||
def clear(self) -> bool:
|
||||
self._cache.clear()
|
||||
return not bool(self._cache)
|
||||
@ -0,0 +1,83 @@
|
||||
import platform
|
||||
import typing as _t
|
||||
|
||||
from cachelib.base import BaseCache
|
||||
from cachelib.serializers import UWSGISerializer
|
||||
|
||||
|
||||
class UWSGICache(BaseCache):
|
||||
"""Implements the cache using uWSGI's caching framework.
|
||||
|
||||
.. note::
|
||||
This class cannot be used when running under PyPy, because the uWSGI
|
||||
API implementation for PyPy is lacking the needed functionality.
|
||||
|
||||
:param default_timeout: The default timeout in seconds.
|
||||
:param cache: The name of the caching instance to connect to, for
|
||||
example: mycache@localhost:3031, defaults to an empty string, which
|
||||
means uWSGI will cache in the local instance. If the cache is in the
|
||||
same instance as the werkzeug app, you only have to provide the name of
|
||||
the cache.
|
||||
"""
|
||||
|
||||
serializer = UWSGISerializer()
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
default_timeout: int = 300,
|
||||
cache: str = "",
|
||||
):
|
||||
BaseCache.__init__(self, default_timeout)
|
||||
|
||||
if platform.python_implementation() == "PyPy":
|
||||
raise RuntimeError(
|
||||
"uWSGI caching does not work under PyPy, see "
|
||||
"the docs for more details."
|
||||
)
|
||||
|
||||
try:
|
||||
import uwsgi # type: ignore
|
||||
|
||||
self._uwsgi = uwsgi
|
||||
except ImportError as err:
|
||||
raise RuntimeError(
|
||||
"uWSGI could not be imported, are you running under uWSGI?"
|
||||
) from err
|
||||
|
||||
self.cache = cache
|
||||
|
||||
def get(self, key: str) -> _t.Any:
|
||||
rv = self._uwsgi.cache_get(key, self.cache)
|
||||
if rv is None:
|
||||
return
|
||||
return self.serializer.loads(rv)
|
||||
|
||||
def delete(self, key: str) -> bool:
|
||||
return bool(self._uwsgi.cache_del(key, self.cache))
|
||||
|
||||
def set(
|
||||
self, key: str, value: _t.Any, timeout: _t.Optional[int] = None
|
||||
) -> _t.Optional[bool]:
|
||||
result = self._uwsgi.cache_update(
|
||||
key,
|
||||
self.serializer.dumps(value),
|
||||
self._normalize_timeout(timeout),
|
||||
self.cache,
|
||||
) # type: bool
|
||||
return result
|
||||
|
||||
def add(self, key: str, value: _t.Any, timeout: _t.Optional[int] = None) -> bool:
|
||||
return bool(
|
||||
self._uwsgi.cache_set(
|
||||
key,
|
||||
self.serializer.dumps(value),
|
||||
self._normalize_timeout(timeout),
|
||||
self.cache,
|
||||
)
|
||||
)
|
||||
|
||||
def clear(self) -> bool:
|
||||
return bool(self._uwsgi.cache_clear(self.cache))
|
||||
|
||||
def has(self, key: str) -> bool:
|
||||
return self._uwsgi.cache_exists(key, self.cache) is not None
|
||||
@ -0,0 +1 @@
|
||||
pip
|
||||
@ -0,0 +1,20 @@
|
||||
This package contains a modified version of ca-bundle.crt:
|
||||
|
||||
ca-bundle.crt -- Bundle of CA Root Certificates
|
||||
|
||||
This is a bundle of X.509 certificates of public Certificate Authorities
|
||||
(CA). These were automatically extracted from Mozilla's root certificates
|
||||
file (certdata.txt). This file can be found in the mozilla source tree:
|
||||
https://hg.mozilla.org/mozilla-central/file/tip/security/nss/lib/ckfw/builtins/certdata.txt
|
||||
It contains the certificates in PEM format and therefore
|
||||
can be directly used with curl / libcurl / php_curl, or with
|
||||
an Apache+mod_ssl webserver for SSL client authentication.
|
||||
Just configure this file as the SSLCACertificateFile.#
|
||||
|
||||
***** BEGIN LICENSE BLOCK *****
|
||||
This Source Code Form is subject to the terms of the Mozilla Public License,
|
||||
v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain
|
||||
one at http://mozilla.org/MPL/2.0/.
|
||||
|
||||
***** END LICENSE BLOCK *****
|
||||
@(#) $RCSfile: certdata.txt,v $ $Revision: 1.80 $ $Date: 2011/11/03 15:11:58 $
|
||||
@ -0,0 +1,67 @@
|
||||
Metadata-Version: 2.1
|
||||
Name: certifi
|
||||
Version: 2024.8.30
|
||||
Summary: Python package for providing Mozilla's CA Bundle.
|
||||
Home-page: https://github.com/certifi/python-certifi
|
||||
Author: Kenneth Reitz
|
||||
Author-email: me@kennethreitz.com
|
||||
License: MPL-2.0
|
||||
Project-URL: Source, https://github.com/certifi/python-certifi
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: Intended Audience :: Developers
|
||||
Classifier: License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)
|
||||
Classifier: Natural Language :: English
|
||||
Classifier: Programming Language :: Python
|
||||
Classifier: Programming Language :: Python :: 3
|
||||
Classifier: Programming Language :: Python :: 3 :: Only
|
||||
Classifier: Programming Language :: Python :: 3.6
|
||||
Classifier: Programming Language :: Python :: 3.7
|
||||
Classifier: Programming Language :: Python :: 3.8
|
||||
Classifier: Programming Language :: Python :: 3.9
|
||||
Classifier: Programming Language :: Python :: 3.10
|
||||
Classifier: Programming Language :: Python :: 3.11
|
||||
Classifier: Programming Language :: Python :: 3.12
|
||||
Requires-Python: >=3.6
|
||||
License-File: LICENSE
|
||||
|
||||
Certifi: Python SSL Certificates
|
||||
================================
|
||||
|
||||
Certifi provides Mozilla's carefully curated collection of Root Certificates for
|
||||
validating the trustworthiness of SSL certificates while verifying the identity
|
||||
of TLS hosts. It has been extracted from the `Requests`_ project.
|
||||
|
||||
Installation
|
||||
------------
|
||||
|
||||
``certifi`` is available on PyPI. Simply install it with ``pip``::
|
||||
|
||||
$ pip install certifi
|
||||
|
||||
Usage
|
||||
-----
|
||||
|
||||
To reference the installed certificate authority (CA) bundle, you can use the
|
||||
built-in function::
|
||||
|
||||
>>> import certifi
|
||||
|
||||
>>> certifi.where()
|
||||
'/usr/local/lib/python3.7/site-packages/certifi/cacert.pem'
|
||||
|
||||
Or from the command line::
|
||||
|
||||
$ python -m certifi
|
||||
/usr/local/lib/python3.7/site-packages/certifi/cacert.pem
|
||||
|
||||
Enjoy!
|
||||
|
||||
.. _`Requests`: https://requests.readthedocs.io/en/master/
|
||||
|
||||
Addition/Removal of Certificates
|
||||
--------------------------------
|
||||
|
||||
Certifi does not support any addition/removal or other modification of the
|
||||
CA trust store content. This project is intended to provide a reliable and
|
||||
highly portable root of trust to python deployments. Look to upstream projects
|
||||
for methods to use alternate trust.
|
||||
@ -0,0 +1,14 @@
|
||||
certifi-2024.8.30.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
|
||||
certifi-2024.8.30.dist-info/LICENSE,sha256=6TcW2mucDVpKHfYP5pWzcPBpVgPSH2-D8FPkLPwQyvc,989
|
||||
certifi-2024.8.30.dist-info/METADATA,sha256=GhBHRVUN6a4ZdUgE_N5wmukJfyuoE-QyIl8Y3ifNQBM,2222
|
||||
certifi-2024.8.30.dist-info/RECORD,,
|
||||
certifi-2024.8.30.dist-info/WHEEL,sha256=UvcQYKBHoFqaQd6LKyqHw9fxEolWLQnlzP0h_LgJAfI,91
|
||||
certifi-2024.8.30.dist-info/top_level.txt,sha256=KMu4vUCfsjLrkPbSNdgdekS-pVJzBAJFO__nI8NF6-U,8
|
||||
certifi/__init__.py,sha256=p_GYZrjUwPBUhpLlCZoGb0miKBKSqDAyZC5DvIuqbHQ,94
|
||||
certifi/__main__.py,sha256=xBBoj905TUWBLRGANOcf7oi6e-3dMP4cEoG9OyMs11g,243
|
||||
certifi/__pycache__/__init__.cpython-312.pyc,,
|
||||
certifi/__pycache__/__main__.cpython-312.pyc,,
|
||||
certifi/__pycache__/core.cpython-312.pyc,,
|
||||
certifi/cacert.pem,sha256=lO3rZukXdPyuk6BWUJFOKQliWaXH6HGh9l1GGrUgG0c,299427
|
||||
certifi/core.py,sha256=qRDDFyXVJwTB_EmoGppaXU_R9qCZvhl-EzxPMuV3nTA,4426
|
||||
certifi/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
|
||||
@ -0,0 +1,5 @@
|
||||
Wheel-Version: 1.0
|
||||
Generator: setuptools (74.0.0)
|
||||
Root-Is-Purelib: true
|
||||
Tag: py3-none-any
|
||||
|
||||
@ -0,0 +1 @@
|
||||
certifi
|
||||
@ -0,0 +1,4 @@
|
||||
from .core import contents, where
|
||||
|
||||
__all__ = ["contents", "where"]
|
||||
__version__ = "2024.08.30"
|
||||
@ -0,0 +1,12 @@
|
||||
import argparse
|
||||
|
||||
from certifi import contents, where
|
||||
|
||||
parser = argparse.ArgumentParser()
|
||||
parser.add_argument("-c", "--contents", action="store_true")
|
||||
args = parser.parse_args()
|
||||
|
||||
if args.contents:
|
||||
print(contents())
|
||||
else:
|
||||
print(where())
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,114 @@
|
||||
"""
|
||||
certifi.py
|
||||
~~~~~~~~~~
|
||||
|
||||
This module returns the installation location of cacert.pem or its contents.
|
||||
"""
|
||||
import sys
|
||||
import atexit
|
||||
|
||||
def exit_cacert_ctx() -> None:
|
||||
_CACERT_CTX.__exit__(None, None, None) # type: ignore[union-attr]
|
||||
|
||||
|
||||
if sys.version_info >= (3, 11):
|
||||
|
||||
from importlib.resources import as_file, files
|
||||
|
||||
_CACERT_CTX = None
|
||||
_CACERT_PATH = None
|
||||
|
||||
def where() -> str:
|
||||
# This is slightly terrible, but we want to delay extracting the file
|
||||
# in cases where we're inside of a zipimport situation until someone
|
||||
# actually calls where(), but we don't want to re-extract the file
|
||||
# on every call of where(), so we'll do it once then store it in a
|
||||
# global variable.
|
||||
global _CACERT_CTX
|
||||
global _CACERT_PATH
|
||||
if _CACERT_PATH is None:
|
||||
# This is slightly janky, the importlib.resources API wants you to
|
||||
# manage the cleanup of this file, so it doesn't actually return a
|
||||
# path, it returns a context manager that will give you the path
|
||||
# when you enter it and will do any cleanup when you leave it. In
|
||||
# the common case of not needing a temporary file, it will just
|
||||
# return the file system location and the __exit__() is a no-op.
|
||||
#
|
||||
# We also have to hold onto the actual context manager, because
|
||||
# it will do the cleanup whenever it gets garbage collected, so
|
||||
# we will also store that at the global level as well.
|
||||
_CACERT_CTX = as_file(files("certifi").joinpath("cacert.pem"))
|
||||
_CACERT_PATH = str(_CACERT_CTX.__enter__())
|
||||
atexit.register(exit_cacert_ctx)
|
||||
|
||||
return _CACERT_PATH
|
||||
|
||||
def contents() -> str:
|
||||
return files("certifi").joinpath("cacert.pem").read_text(encoding="ascii")
|
||||
|
||||
elif sys.version_info >= (3, 7):
|
||||
|
||||
from importlib.resources import path as get_path, read_text
|
||||
|
||||
_CACERT_CTX = None
|
||||
_CACERT_PATH = None
|
||||
|
||||
def where() -> str:
|
||||
# This is slightly terrible, but we want to delay extracting the
|
||||
# file in cases where we're inside of a zipimport situation until
|
||||
# someone actually calls where(), but we don't want to re-extract
|
||||
# the file on every call of where(), so we'll do it once then store
|
||||
# it in a global variable.
|
||||
global _CACERT_CTX
|
||||
global _CACERT_PATH
|
||||
if _CACERT_PATH is None:
|
||||
# This is slightly janky, the importlib.resources API wants you
|
||||
# to manage the cleanup of this file, so it doesn't actually
|
||||
# return a path, it returns a context manager that will give
|
||||
# you the path when you enter it and will do any cleanup when
|
||||
# you leave it. In the common case of not needing a temporary
|
||||
# file, it will just return the file system location and the
|
||||
# __exit__() is a no-op.
|
||||
#
|
||||
# We also have to hold onto the actual context manager, because
|
||||
# it will do the cleanup whenever it gets garbage collected, so
|
||||
# we will also store that at the global level as well.
|
||||
_CACERT_CTX = get_path("certifi", "cacert.pem")
|
||||
_CACERT_PATH = str(_CACERT_CTX.__enter__())
|
||||
atexit.register(exit_cacert_ctx)
|
||||
|
||||
return _CACERT_PATH
|
||||
|
||||
def contents() -> str:
|
||||
return read_text("certifi", "cacert.pem", encoding="ascii")
|
||||
|
||||
else:
|
||||
import os
|
||||
import types
|
||||
from typing import Union
|
||||
|
||||
Package = Union[types.ModuleType, str]
|
||||
Resource = Union[str, "os.PathLike"]
|
||||
|
||||
# This fallback will work for Python versions prior to 3.7 that lack the
|
||||
# importlib.resources module but relies on the existing `where` function
|
||||
# so won't address issues with environments like PyOxidizer that don't set
|
||||
# __file__ on modules.
|
||||
def read_text(
|
||||
package: Package,
|
||||
resource: Resource,
|
||||
encoding: str = 'utf-8',
|
||||
errors: str = 'strict'
|
||||
) -> str:
|
||||
with open(where(), encoding=encoding) as data:
|
||||
return data.read()
|
||||
|
||||
# If we don't have importlib.resources, then we will just do the old logic
|
||||
# of assuming we're on the filesystem and munge the path directly.
|
||||
def where() -> str:
|
||||
f = os.path.dirname(__file__)
|
||||
|
||||
return os.path.join(f, "cacert.pem")
|
||||
|
||||
def contents() -> str:
|
||||
return read_text("certifi", "cacert.pem", encoding="ascii")
|
||||
@ -0,0 +1 @@
|
||||
pip
|
||||
@ -0,0 +1,21 @@
|
||||
MIT License
|
||||
|
||||
Copyright (c) 2019 TAHRI Ahmed R.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
@ -0,0 +1,695 @@
|
||||
Metadata-Version: 2.1
|
||||
Name: charset-normalizer
|
||||
Version: 3.4.0
|
||||
Summary: The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet.
|
||||
Home-page: https://github.com/Ousret/charset_normalizer
|
||||
Author: Ahmed TAHRI
|
||||
Author-email: tahri.ahmed@proton.me
|
||||
License: MIT
|
||||
Project-URL: Bug Reports, https://github.com/Ousret/charset_normalizer/issues
|
||||
Project-URL: Documentation, https://charset-normalizer.readthedocs.io/en/latest
|
||||
Keywords: encoding,charset,charset-detector,detector,normalization,unicode,chardet,detect
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: License :: OSI Approved :: MIT License
|
||||
Classifier: Intended Audience :: Developers
|
||||
Classifier: Topic :: Software Development :: Libraries :: Python Modules
|
||||
Classifier: Operating System :: OS Independent
|
||||
Classifier: Programming Language :: Python
|
||||
Classifier: Programming Language :: Python :: 3
|
||||
Classifier: Programming Language :: Python :: 3.7
|
||||
Classifier: Programming Language :: Python :: 3.8
|
||||
Classifier: Programming Language :: Python :: 3.9
|
||||
Classifier: Programming Language :: Python :: 3.10
|
||||
Classifier: Programming Language :: Python :: 3.11
|
||||
Classifier: Programming Language :: Python :: 3.12
|
||||
Classifier: Programming Language :: Python :: 3.13
|
||||
Classifier: Programming Language :: Python :: Implementation :: PyPy
|
||||
Classifier: Topic :: Text Processing :: Linguistic
|
||||
Classifier: Topic :: Utilities
|
||||
Classifier: Typing :: Typed
|
||||
Requires-Python: >=3.7.0
|
||||
Description-Content-Type: text/markdown
|
||||
License-File: LICENSE
|
||||
Provides-Extra: unicode_backport
|
||||
|
||||
<h1 align="center">Charset Detection, for Everyone 👋</h1>
|
||||
|
||||
<p align="center">
|
||||
<sup>The Real First Universal Charset Detector</sup><br>
|
||||
<a href="https://pypi.org/project/charset-normalizer">
|
||||
<img src="https://img.shields.io/pypi/pyversions/charset_normalizer.svg?orange=blue" />
|
||||
</a>
|
||||
<a href="https://pepy.tech/project/charset-normalizer/">
|
||||
<img alt="Download Count Total" src="https://static.pepy.tech/badge/charset-normalizer/month" />
|
||||
</a>
|
||||
<a href="https://bestpractices.coreinfrastructure.org/projects/7297">
|
||||
<img src="https://bestpractices.coreinfrastructure.org/projects/7297/badge">
|
||||
</a>
|
||||
</p>
|
||||
<p align="center">
|
||||
<sup><i>Featured Packages</i></sup><br>
|
||||
<a href="https://github.com/jawah/niquests">
|
||||
<img alt="Static Badge" src="https://img.shields.io/badge/Niquests-HTTP_1.1%2C%202%2C_and_3_Client-cyan">
|
||||
</a>
|
||||
<a href="https://github.com/jawah/wassima">
|
||||
<img alt="Static Badge" src="https://img.shields.io/badge/Wassima-Certifi_Killer-cyan">
|
||||
</a>
|
||||
</p>
|
||||
<p align="center">
|
||||
<sup><i>In other language (unofficial port - by the community)</i></sup><br>
|
||||
<a href="https://github.com/nickspring/charset-normalizer-rs">
|
||||
<img alt="Static Badge" src="https://img.shields.io/badge/Rust-red">
|
||||
</a>
|
||||
</p>
|
||||
|
||||
> A library that helps you read text from an unknown charset encoding.<br /> Motivated by `chardet`,
|
||||
> I'm trying to resolve the issue by taking a new approach.
|
||||
> All IANA character set names for which the Python core library provides codecs are supported.
|
||||
|
||||
<p align="center">
|
||||
>>>>> <a href="https://charsetnormalizerweb.ousret.now.sh" target="_blank">👉 Try Me Online Now, Then Adopt Me 👈 </a> <<<<<
|
||||
</p>
|
||||
|
||||
This project offers you an alternative to **Universal Charset Encoding Detector**, also known as **Chardet**.
|
||||
|
||||
| Feature | [Chardet](https://github.com/chardet/chardet) | Charset Normalizer | [cChardet](https://github.com/PyYoshi/cChardet) |
|
||||
|--------------------------------------------------|:---------------------------------------------:|:--------------------------------------------------------------------------------------------------:|:-----------------------------------------------:|
|
||||
| `Fast` | ❌ | ✅ | ✅ |
|
||||
| `Universal**` | ❌ | ✅ | ❌ |
|
||||
| `Reliable` **without** distinguishable standards | ❌ | ✅ | ✅ |
|
||||
| `Reliable` **with** distinguishable standards | ✅ | ✅ | ✅ |
|
||||
| `License` | LGPL-2.1<br>_restrictive_ | MIT | MPL-1.1<br>_restrictive_ |
|
||||
| `Native Python` | ✅ | ✅ | ❌ |
|
||||
| `Detect spoken language` | ❌ | ✅ | N/A |
|
||||
| `UnicodeDecodeError Safety` | ❌ | ✅ | ❌ |
|
||||
| `Whl Size (min)` | 193.6 kB | 42 kB | ~200 kB |
|
||||
| `Supported Encoding` | 33 | 🎉 [99](https://charset-normalizer.readthedocs.io/en/latest/user/support.html#supported-encodings) | 40 |
|
||||
|
||||
<p align="center">
|
||||
<img src="https://i.imgflip.com/373iay.gif" alt="Reading Normalized Text" width="226"/><img src="https://media.tenor.com/images/c0180f70732a18b4965448d33adba3d0/tenor.gif" alt="Cat Reading Text" width="200"/>
|
||||
</p>
|
||||
|
||||
*\*\* : They are clearly using specific code for a specific encoding even if covering most of used one*<br>
|
||||
Did you got there because of the logs? See [https://charset-normalizer.readthedocs.io/en/latest/user/miscellaneous.html](https://charset-normalizer.readthedocs.io/en/latest/user/miscellaneous.html)
|
||||
|
||||
## ⚡ Performance
|
||||
|
||||
This package offer better performance than its counterpart Chardet. Here are some numbers.
|
||||
|
||||
| Package | Accuracy | Mean per file (ms) | File per sec (est) |
|
||||
|-----------------------------------------------|:--------:|:------------------:|:------------------:|
|
||||
| [chardet](https://github.com/chardet/chardet) | 86 % | 200 ms | 5 file/sec |
|
||||
| charset-normalizer | **98 %** | **10 ms** | 100 file/sec |
|
||||
|
||||
| Package | 99th percentile | 95th percentile | 50th percentile |
|
||||
|-----------------------------------------------|:---------------:|:---------------:|:---------------:|
|
||||
| [chardet](https://github.com/chardet/chardet) | 1200 ms | 287 ms | 23 ms |
|
||||
| charset-normalizer | 100 ms | 50 ms | 5 ms |
|
||||
|
||||
Chardet's performance on larger file (1MB+) are very poor. Expect huge difference on large payload.
|
||||
|
||||
> Stats are generated using 400+ files using default parameters. More details on used files, see GHA workflows.
|
||||
> And yes, these results might change at any time. The dataset can be updated to include more files.
|
||||
> The actual delays heavily depends on your CPU capabilities. The factors should remain the same.
|
||||
> Keep in mind that the stats are generous and that Chardet accuracy vs our is measured using Chardet initial capability
|
||||
> (eg. Supported Encoding) Challenge-them if you want.
|
||||
|
||||
## ✨ Installation
|
||||
|
||||
Using pip:
|
||||
|
||||
```sh
|
||||
pip install charset-normalizer -U
|
||||
```
|
||||
|
||||
## 🚀 Basic Usage
|
||||
|
||||
### CLI
|
||||
This package comes with a CLI.
|
||||
|
||||
```
|
||||
usage: normalizer [-h] [-v] [-a] [-n] [-m] [-r] [-f] [-t THRESHOLD]
|
||||
file [file ...]
|
||||
|
||||
The Real First Universal Charset Detector. Discover originating encoding used
|
||||
on text file. Normalize text to unicode.
|
||||
|
||||
positional arguments:
|
||||
files File(s) to be analysed
|
||||
|
||||
optional arguments:
|
||||
-h, --help show this help message and exit
|
||||
-v, --verbose Display complementary information about file if any.
|
||||
Stdout will contain logs about the detection process.
|
||||
-a, --with-alternative
|
||||
Output complementary possibilities if any. Top-level
|
||||
JSON WILL be a list.
|
||||
-n, --normalize Permit to normalize input file. If not set, program
|
||||
does not write anything.
|
||||
-m, --minimal Only output the charset detected to STDOUT. Disabling
|
||||
JSON output.
|
||||
-r, --replace Replace file when trying to normalize it instead of
|
||||
creating a new one.
|
||||
-f, --force Replace file without asking if you are sure, use this
|
||||
flag with caution.
|
||||
-t THRESHOLD, --threshold THRESHOLD
|
||||
Define a custom maximum amount of chaos allowed in
|
||||
decoded content. 0. <= chaos <= 1.
|
||||
--version Show version information and exit.
|
||||
```
|
||||
|
||||
```bash
|
||||
normalizer ./data/sample.1.fr.srt
|
||||
```
|
||||
|
||||
or
|
||||
|
||||
```bash
|
||||
python -m charset_normalizer ./data/sample.1.fr.srt
|
||||
```
|
||||
|
||||
🎉 Since version 1.4.0 the CLI produce easily usable stdout result in JSON format.
|
||||
|
||||
```json
|
||||
{
|
||||
"path": "/home/default/projects/charset_normalizer/data/sample.1.fr.srt",
|
||||
"encoding": "cp1252",
|
||||
"encoding_aliases": [
|
||||
"1252",
|
||||
"windows_1252"
|
||||
],
|
||||
"alternative_encodings": [
|
||||
"cp1254",
|
||||
"cp1256",
|
||||
"cp1258",
|
||||
"iso8859_14",
|
||||
"iso8859_15",
|
||||
"iso8859_16",
|
||||
"iso8859_3",
|
||||
"iso8859_9",
|
||||
"latin_1",
|
||||
"mbcs"
|
||||
],
|
||||
"language": "French",
|
||||
"alphabets": [
|
||||
"Basic Latin",
|
||||
"Latin-1 Supplement"
|
||||
],
|
||||
"has_sig_or_bom": false,
|
||||
"chaos": 0.149,
|
||||
"coherence": 97.152,
|
||||
"unicode_path": null,
|
||||
"is_preferred": true
|
||||
}
|
||||
```
|
||||
|
||||
### Python
|
||||
*Just print out normalized text*
|
||||
```python
|
||||
from charset_normalizer import from_path
|
||||
|
||||
results = from_path('./my_subtitle.srt')
|
||||
|
||||
print(str(results.best()))
|
||||
```
|
||||
|
||||
*Upgrade your code without effort*
|
||||
```python
|
||||
from charset_normalizer import detect
|
||||
```
|
||||
|
||||
The above code will behave the same as **chardet**. We ensure that we offer the best (reasonable) BC result possible.
|
||||
|
||||
See the docs for advanced usage : [readthedocs.io](https://charset-normalizer.readthedocs.io/en/latest/)
|
||||
|
||||
## 😇 Why
|
||||
|
||||
When I started using Chardet, I noticed that it was not suited to my expectations, and I wanted to propose a
|
||||
reliable alternative using a completely different method. Also! I never back down on a good challenge!
|
||||
|
||||
I **don't care** about the **originating charset** encoding, because **two different tables** can
|
||||
produce **two identical rendered string.**
|
||||
What I want is to get readable text, the best I can.
|
||||
|
||||
In a way, **I'm brute forcing text decoding.** How cool is that ? 😎
|
||||
|
||||
Don't confuse package **ftfy** with charset-normalizer or chardet. ftfy goal is to repair unicode string whereas charset-normalizer to convert raw file in unknown encoding to unicode.
|
||||
|
||||
## 🍰 How
|
||||
|
||||
- Discard all charset encoding table that could not fit the binary content.
|
||||
- Measure noise, or the mess once opened (by chunks) with a corresponding charset encoding.
|
||||
- Extract matches with the lowest mess detected.
|
||||
- Additionally, we measure coherence / probe for a language.
|
||||
|
||||
**Wait a minute**, what is noise/mess and coherence according to **YOU ?**
|
||||
|
||||
*Noise :* I opened hundred of text files, **written by humans**, with the wrong encoding table. **I observed**, then
|
||||
**I established** some ground rules about **what is obvious** when **it seems like** a mess.
|
||||
I know that my interpretation of what is noise is probably incomplete, feel free to contribute in order to
|
||||
improve or rewrite it.
|
||||
|
||||
*Coherence :* For each language there is on earth, we have computed ranked letter appearance occurrences (the best we can). So I thought
|
||||
that intel is worth something here. So I use those records against decoded text to check if I can detect intelligent design.
|
||||
|
||||
## ⚡ Known limitations
|
||||
|
||||
- Language detection is unreliable when text contains two or more languages sharing identical letters. (eg. HTML (english tags) + Turkish content (Sharing Latin characters))
|
||||
- Every charset detector heavily depends on sufficient content. In common cases, do not bother run detection on very tiny content.
|
||||
|
||||
## ⚠️ About Python EOLs
|
||||
|
||||
**If you are running:**
|
||||
|
||||
- Python >=2.7,<3.5: Unsupported
|
||||
- Python 3.5: charset-normalizer < 2.1
|
||||
- Python 3.6: charset-normalizer < 3.1
|
||||
- Python 3.7: charset-normalizer < 4.0
|
||||
|
||||
Upgrade your Python interpreter as soon as possible.
|
||||
|
||||
## 👤 Contributing
|
||||
|
||||
Contributions, issues and feature requests are very much welcome.<br />
|
||||
Feel free to check [issues page](https://github.com/ousret/charset_normalizer/issues) if you want to contribute.
|
||||
|
||||
## 📝 License
|
||||
|
||||
Copyright © [Ahmed TAHRI @Ousret](https://github.com/Ousret).<br />
|
||||
This project is [MIT](https://github.com/Ousret/charset_normalizer/blob/master/LICENSE) licensed.
|
||||
|
||||
Characters frequencies used in this project © 2012 [Denny Vrandečić](http://simia.net/letters/)
|
||||
|
||||
## 💼 For Enterprise
|
||||
|
||||
Professional support for charset-normalizer is available as part of the [Tidelift
|
||||
Subscription][1]. Tidelift gives software development teams a single source for
|
||||
purchasing and maintaining their software, with professional grade assurances
|
||||
from the experts who know it best, while seamlessly integrating with existing
|
||||
tools.
|
||||
|
||||
[1]: https://tidelift.com/subscription/pkg/pypi-charset-normalizer?utm_source=pypi-charset-normalizer&utm_medium=readme
|
||||
|
||||
# Changelog
|
||||
All notable changes to charset-normalizer will be documented in this file. This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
|
||||
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
|
||||
|
||||
## [3.4.0](https://github.com/Ousret/charset_normalizer/compare/3.3.2...3.4.0) (2024-10-08)
|
||||
|
||||
### Added
|
||||
- Argument `--no-preemptive` in the CLI to prevent the detector to search for hints.
|
||||
- Support for Python 3.13 (#512)
|
||||
|
||||
### Fixed
|
||||
- Relax the TypeError exception thrown when trying to compare a CharsetMatch with anything else than a CharsetMatch.
|
||||
- Improved the general reliability of the detector based on user feedbacks. (#520) (#509) (#498) (#407) (#537)
|
||||
- Declared charset in content (preemptive detection) not changed when converting to utf-8 bytes. (#381)
|
||||
|
||||
## [3.3.2](https://github.com/Ousret/charset_normalizer/compare/3.3.1...3.3.2) (2023-10-31)
|
||||
|
||||
### Fixed
|
||||
- Unintentional memory usage regression when using large payload that match several encoding (#376)
|
||||
- Regression on some detection case showcased in the documentation (#371)
|
||||
|
||||
### Added
|
||||
- Noise (md) probe that identify malformed arabic representation due to the presence of letters in isolated form (credit to my wife)
|
||||
|
||||
## [3.3.1](https://github.com/Ousret/charset_normalizer/compare/3.3.0...3.3.1) (2023-10-22)
|
||||
|
||||
### Changed
|
||||
- Optional mypyc compilation upgraded to version 1.6.1 for Python >= 3.8
|
||||
- Improved the general detection reliability based on reports from the community
|
||||
|
||||
## [3.3.0](https://github.com/Ousret/charset_normalizer/compare/3.2.0...3.3.0) (2023-09-30)
|
||||
|
||||
### Added
|
||||
- Allow to execute the CLI (e.g. normalizer) through `python -m charset_normalizer.cli` or `python -m charset_normalizer`
|
||||
- Support for 9 forgotten encoding that are supported by Python but unlisted in `encoding.aliases` as they have no alias (#323)
|
||||
|
||||
### Removed
|
||||
- (internal) Redundant utils.is_ascii function and unused function is_private_use_only
|
||||
- (internal) charset_normalizer.assets is moved inside charset_normalizer.constant
|
||||
|
||||
### Changed
|
||||
- (internal) Unicode code blocks in constants are updated using the latest v15.0.0 definition to improve detection
|
||||
- Optional mypyc compilation upgraded to version 1.5.1 for Python >= 3.8
|
||||
|
||||
### Fixed
|
||||
- Unable to properly sort CharsetMatch when both chaos/noise and coherence were close due to an unreachable condition in \_\_lt\_\_ (#350)
|
||||
|
||||
## [3.2.0](https://github.com/Ousret/charset_normalizer/compare/3.1.0...3.2.0) (2023-06-07)
|
||||
|
||||
### Changed
|
||||
- Typehint for function `from_path` no longer enforce `PathLike` as its first argument
|
||||
- Minor improvement over the global detection reliability
|
||||
|
||||
### Added
|
||||
- Introduce function `is_binary` that relies on main capabilities, and optimized to detect binaries
|
||||
- Propagate `enable_fallback` argument throughout `from_bytes`, `from_path`, and `from_fp` that allow a deeper control over the detection (default True)
|
||||
- Explicit support for Python 3.12
|
||||
|
||||
### Fixed
|
||||
- Edge case detection failure where a file would contain 'very-long' camel cased word (Issue #289)
|
||||
|
||||
## [3.1.0](https://github.com/Ousret/charset_normalizer/compare/3.0.1...3.1.0) (2023-03-06)
|
||||
|
||||
### Added
|
||||
- Argument `should_rename_legacy` for legacy function `detect` and disregard any new arguments without errors (PR #262)
|
||||
|
||||
### Removed
|
||||
- Support for Python 3.6 (PR #260)
|
||||
|
||||
### Changed
|
||||
- Optional speedup provided by mypy/c 1.0.1
|
||||
|
||||
## [3.0.1](https://github.com/Ousret/charset_normalizer/compare/3.0.0...3.0.1) (2022-11-18)
|
||||
|
||||
### Fixed
|
||||
- Multi-bytes cutter/chunk generator did not always cut correctly (PR #233)
|
||||
|
||||
### Changed
|
||||
- Speedup provided by mypy/c 0.990 on Python >= 3.7
|
||||
|
||||
## [3.0.0](https://github.com/Ousret/charset_normalizer/compare/2.1.1...3.0.0) (2022-10-20)
|
||||
|
||||
### Added
|
||||
- Extend the capability of explain=True when cp_isolation contains at most two entries (min one), will log in details of the Mess-detector results
|
||||
- Support for alternative language frequency set in charset_normalizer.assets.FREQUENCIES
|
||||
- Add parameter `language_threshold` in `from_bytes`, `from_path` and `from_fp` to adjust the minimum expected coherence ratio
|
||||
- `normalizer --version` now specify if current version provide extra speedup (meaning mypyc compilation whl)
|
||||
|
||||
### Changed
|
||||
- Build with static metadata using 'build' frontend
|
||||
- Make the language detection stricter
|
||||
- Optional: Module `md.py` can be compiled using Mypyc to provide an extra speedup up to 4x faster than v2.1
|
||||
|
||||
### Fixed
|
||||
- CLI with opt --normalize fail when using full path for files
|
||||
- TooManyAccentuatedPlugin induce false positive on the mess detection when too few alpha character have been fed to it
|
||||
- Sphinx warnings when generating the documentation
|
||||
|
||||
### Removed
|
||||
- Coherence detector no longer return 'Simple English' instead return 'English'
|
||||
- Coherence detector no longer return 'Classical Chinese' instead return 'Chinese'
|
||||
- Breaking: Method `first()` and `best()` from CharsetMatch
|
||||
- UTF-7 will no longer appear as "detected" without a recognized SIG/mark (is unreliable/conflict with ASCII)
|
||||
- Breaking: Class aliases CharsetDetector, CharsetDoctor, CharsetNormalizerMatch and CharsetNormalizerMatches
|
||||
- Breaking: Top-level function `normalize`
|
||||
- Breaking: Properties `chaos_secondary_pass`, `coherence_non_latin` and `w_counter` from CharsetMatch
|
||||
- Support for the backport `unicodedata2`
|
||||
|
||||
## [3.0.0rc1](https://github.com/Ousret/charset_normalizer/compare/3.0.0b2...3.0.0rc1) (2022-10-18)
|
||||
|
||||
### Added
|
||||
- Extend the capability of explain=True when cp_isolation contains at most two entries (min one), will log in details of the Mess-detector results
|
||||
- Support for alternative language frequency set in charset_normalizer.assets.FREQUENCIES
|
||||
- Add parameter `language_threshold` in `from_bytes`, `from_path` and `from_fp` to adjust the minimum expected coherence ratio
|
||||
|
||||
### Changed
|
||||
- Build with static metadata using 'build' frontend
|
||||
- Make the language detection stricter
|
||||
|
||||
### Fixed
|
||||
- CLI with opt --normalize fail when using full path for files
|
||||
- TooManyAccentuatedPlugin induce false positive on the mess detection when too few alpha character have been fed to it
|
||||
|
||||
### Removed
|
||||
- Coherence detector no longer return 'Simple English' instead return 'English'
|
||||
- Coherence detector no longer return 'Classical Chinese' instead return 'Chinese'
|
||||
|
||||
## [3.0.0b2](https://github.com/Ousret/charset_normalizer/compare/3.0.0b1...3.0.0b2) (2022-08-21)
|
||||
|
||||
### Added
|
||||
- `normalizer --version` now specify if current version provide extra speedup (meaning mypyc compilation whl)
|
||||
|
||||
### Removed
|
||||
- Breaking: Method `first()` and `best()` from CharsetMatch
|
||||
- UTF-7 will no longer appear as "detected" without a recognized SIG/mark (is unreliable/conflict with ASCII)
|
||||
|
||||
### Fixed
|
||||
- Sphinx warnings when generating the documentation
|
||||
|
||||
## [3.0.0b1](https://github.com/Ousret/charset_normalizer/compare/2.1.0...3.0.0b1) (2022-08-15)
|
||||
|
||||
### Changed
|
||||
- Optional: Module `md.py` can be compiled using Mypyc to provide an extra speedup up to 4x faster than v2.1
|
||||
|
||||
### Removed
|
||||
- Breaking: Class aliases CharsetDetector, CharsetDoctor, CharsetNormalizerMatch and CharsetNormalizerMatches
|
||||
- Breaking: Top-level function `normalize`
|
||||
- Breaking: Properties `chaos_secondary_pass`, `coherence_non_latin` and `w_counter` from CharsetMatch
|
||||
- Support for the backport `unicodedata2`
|
||||
|
||||
## [2.1.1](https://github.com/Ousret/charset_normalizer/compare/2.1.0...2.1.1) (2022-08-19)
|
||||
|
||||
### Deprecated
|
||||
- Function `normalize` scheduled for removal in 3.0
|
||||
|
||||
### Changed
|
||||
- Removed useless call to decode in fn is_unprintable (#206)
|
||||
|
||||
### Fixed
|
||||
- Third-party library (i18n xgettext) crashing not recognizing utf_8 (PEP 263) with underscore from [@aleksandernovikov](https://github.com/aleksandernovikov) (#204)
|
||||
|
||||
## [2.1.0](https://github.com/Ousret/charset_normalizer/compare/2.0.12...2.1.0) (2022-06-19)
|
||||
|
||||
### Added
|
||||
- Output the Unicode table version when running the CLI with `--version` (PR #194)
|
||||
|
||||
### Changed
|
||||
- Re-use decoded buffer for single byte character sets from [@nijel](https://github.com/nijel) (PR #175)
|
||||
- Fixing some performance bottlenecks from [@deedy5](https://github.com/deedy5) (PR #183)
|
||||
|
||||
### Fixed
|
||||
- Workaround potential bug in cpython with Zero Width No-Break Space located in Arabic Presentation Forms-B, Unicode 1.1 not acknowledged as space (PR #175)
|
||||
- CLI default threshold aligned with the API threshold from [@oleksandr-kuzmenko](https://github.com/oleksandr-kuzmenko) (PR #181)
|
||||
|
||||
### Removed
|
||||
- Support for Python 3.5 (PR #192)
|
||||
|
||||
### Deprecated
|
||||
- Use of backport unicodedata from `unicodedata2` as Python is quickly catching up, scheduled for removal in 3.0 (PR #194)
|
||||
|
||||
## [2.0.12](https://github.com/Ousret/charset_normalizer/compare/2.0.11...2.0.12) (2022-02-12)
|
||||
|
||||
### Fixed
|
||||
- ASCII miss-detection on rare cases (PR #170)
|
||||
|
||||
## [2.0.11](https://github.com/Ousret/charset_normalizer/compare/2.0.10...2.0.11) (2022-01-30)
|
||||
|
||||
### Added
|
||||
- Explicit support for Python 3.11 (PR #164)
|
||||
|
||||
### Changed
|
||||
- The logging behavior have been completely reviewed, now using only TRACE and DEBUG levels (PR #163 #165)
|
||||
|
||||
## [2.0.10](https://github.com/Ousret/charset_normalizer/compare/2.0.9...2.0.10) (2022-01-04)
|
||||
|
||||
### Fixed
|
||||
- Fallback match entries might lead to UnicodeDecodeError for large bytes sequence (PR #154)
|
||||
|
||||
### Changed
|
||||
- Skipping the language-detection (CD) on ASCII (PR #155)
|
||||
|
||||
## [2.0.9](https://github.com/Ousret/charset_normalizer/compare/2.0.8...2.0.9) (2021-12-03)
|
||||
|
||||
### Changed
|
||||
- Moderating the logging impact (since 2.0.8) for specific environments (PR #147)
|
||||
|
||||
### Fixed
|
||||
- Wrong logging level applied when setting kwarg `explain` to True (PR #146)
|
||||
|
||||
## [2.0.8](https://github.com/Ousret/charset_normalizer/compare/2.0.7...2.0.8) (2021-11-24)
|
||||
### Changed
|
||||
- Improvement over Vietnamese detection (PR #126)
|
||||
- MD improvement on trailing data and long foreign (non-pure latin) data (PR #124)
|
||||
- Efficiency improvements in cd/alphabet_languages from [@adbar](https://github.com/adbar) (PR #122)
|
||||
- call sum() without an intermediary list following PEP 289 recommendations from [@adbar](https://github.com/adbar) (PR #129)
|
||||
- Code style as refactored by Sourcery-AI (PR #131)
|
||||
- Minor adjustment on the MD around european words (PR #133)
|
||||
- Remove and replace SRTs from assets / tests (PR #139)
|
||||
- Initialize the library logger with a `NullHandler` by default from [@nmaynes](https://github.com/nmaynes) (PR #135)
|
||||
- Setting kwarg `explain` to True will add provisionally (bounded to function lifespan) a specific stream handler (PR #135)
|
||||
|
||||
### Fixed
|
||||
- Fix large (misleading) sequence giving UnicodeDecodeError (PR #137)
|
||||
- Avoid using too insignificant chunk (PR #137)
|
||||
|
||||
### Added
|
||||
- Add and expose function `set_logging_handler` to configure a specific StreamHandler from [@nmaynes](https://github.com/nmaynes) (PR #135)
|
||||
- Add `CHANGELOG.md` entries, format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) (PR #141)
|
||||
|
||||
## [2.0.7](https://github.com/Ousret/charset_normalizer/compare/2.0.6...2.0.7) (2021-10-11)
|
||||
### Added
|
||||
- Add support for Kazakh (Cyrillic) language detection (PR #109)
|
||||
|
||||
### Changed
|
||||
- Further, improve inferring the language from a given single-byte code page (PR #112)
|
||||
- Vainly trying to leverage PEP263 when PEP3120 is not supported (PR #116)
|
||||
- Refactoring for potential performance improvements in loops from [@adbar](https://github.com/adbar) (PR #113)
|
||||
- Various detection improvement (MD+CD) (PR #117)
|
||||
|
||||
### Removed
|
||||
- Remove redundant logging entry about detected language(s) (PR #115)
|
||||
|
||||
### Fixed
|
||||
- Fix a minor inconsistency between Python 3.5 and other versions regarding language detection (PR #117 #102)
|
||||
|
||||
## [2.0.6](https://github.com/Ousret/charset_normalizer/compare/2.0.5...2.0.6) (2021-09-18)
|
||||
### Fixed
|
||||
- Unforeseen regression with the loss of the backward-compatibility with some older minor of Python 3.5.x (PR #100)
|
||||
- Fix CLI crash when using --minimal output in certain cases (PR #103)
|
||||
|
||||
### Changed
|
||||
- Minor improvement to the detection efficiency (less than 1%) (PR #106 #101)
|
||||
|
||||
## [2.0.5](https://github.com/Ousret/charset_normalizer/compare/2.0.4...2.0.5) (2021-09-14)
|
||||
### Changed
|
||||
- The project now comply with: flake8, mypy, isort and black to ensure a better overall quality (PR #81)
|
||||
- The BC-support with v1.x was improved, the old staticmethods are restored (PR #82)
|
||||
- The Unicode detection is slightly improved (PR #93)
|
||||
- Add syntax sugar \_\_bool\_\_ for results CharsetMatches list-container (PR #91)
|
||||
|
||||
### Removed
|
||||
- The project no longer raise warning on tiny content given for detection, will be simply logged as warning instead (PR #92)
|
||||
|
||||
### Fixed
|
||||
- In some rare case, the chunks extractor could cut in the middle of a multi-byte character and could mislead the mess detection (PR #95)
|
||||
- Some rare 'space' characters could trip up the UnprintablePlugin/Mess detection (PR #96)
|
||||
- The MANIFEST.in was not exhaustive (PR #78)
|
||||
|
||||
## [2.0.4](https://github.com/Ousret/charset_normalizer/compare/2.0.3...2.0.4) (2021-07-30)
|
||||
### Fixed
|
||||
- The CLI no longer raise an unexpected exception when no encoding has been found (PR #70)
|
||||
- Fix accessing the 'alphabets' property when the payload contains surrogate characters (PR #68)
|
||||
- The logger could mislead (explain=True) on detected languages and the impact of one MBCS match (PR #72)
|
||||
- Submatch factoring could be wrong in rare edge cases (PR #72)
|
||||
- Multiple files given to the CLI were ignored when publishing results to STDOUT. (After the first path) (PR #72)
|
||||
- Fix line endings from CRLF to LF for certain project files (PR #67)
|
||||
|
||||
### Changed
|
||||
- Adjust the MD to lower the sensitivity, thus improving the global detection reliability (PR #69 #76)
|
||||
- Allow fallback on specified encoding if any (PR #71)
|
||||
|
||||
## [2.0.3](https://github.com/Ousret/charset_normalizer/compare/2.0.2...2.0.3) (2021-07-16)
|
||||
### Changed
|
||||
- Part of the detection mechanism has been improved to be less sensitive, resulting in more accurate detection results. Especially ASCII. (PR #63)
|
||||
- According to the community wishes, the detection will fall back on ASCII or UTF-8 in a last-resort case. (PR #64)
|
||||
|
||||
## [2.0.2](https://github.com/Ousret/charset_normalizer/compare/2.0.1...2.0.2) (2021-07-15)
|
||||
### Fixed
|
||||
- Empty/Too small JSON payload miss-detection fixed. Report from [@tseaver](https://github.com/tseaver) (PR #59)
|
||||
|
||||
### Changed
|
||||
- Don't inject unicodedata2 into sys.modules from [@akx](https://github.com/akx) (PR #57)
|
||||
|
||||
## [2.0.1](https://github.com/Ousret/charset_normalizer/compare/2.0.0...2.0.1) (2021-07-13)
|
||||
### Fixed
|
||||
- Make it work where there isn't a filesystem available, dropping assets frequencies.json. Report from [@sethmlarson](https://github.com/sethmlarson). (PR #55)
|
||||
- Using explain=False permanently disable the verbose output in the current runtime (PR #47)
|
||||
- One log entry (language target preemptive) was not show in logs when using explain=True (PR #47)
|
||||
- Fix undesired exception (ValueError) on getitem of instance CharsetMatches (PR #52)
|
||||
|
||||
### Changed
|
||||
- Public function normalize default args values were not aligned with from_bytes (PR #53)
|
||||
|
||||
### Added
|
||||
- You may now use charset aliases in cp_isolation and cp_exclusion arguments (PR #47)
|
||||
|
||||
## [2.0.0](https://github.com/Ousret/charset_normalizer/compare/1.4.1...2.0.0) (2021-07-02)
|
||||
### Changed
|
||||
- 4x to 5 times faster than the previous 1.4.0 release. At least 2x faster than Chardet.
|
||||
- Accent has been made on UTF-8 detection, should perform rather instantaneous.
|
||||
- The backward compatibility with Chardet has been greatly improved. The legacy detect function returns an identical charset name whenever possible.
|
||||
- The detection mechanism has been slightly improved, now Turkish content is detected correctly (most of the time)
|
||||
- The program has been rewritten to ease the readability and maintainability. (+Using static typing)+
|
||||
- utf_7 detection has been reinstated.
|
||||
|
||||
### Removed
|
||||
- This package no longer require anything when used with Python 3.5 (Dropped cached_property)
|
||||
- Removed support for these languages: Catalan, Esperanto, Kazakh, Baque, Volapük, Azeri, Galician, Nynorsk, Macedonian, and Serbocroatian.
|
||||
- The exception hook on UnicodeDecodeError has been removed.
|
||||
|
||||
### Deprecated
|
||||
- Methods coherence_non_latin, w_counter, chaos_secondary_pass of the class CharsetMatch are now deprecated and scheduled for removal in v3.0
|
||||
|
||||
### Fixed
|
||||
- The CLI output used the relative path of the file(s). Should be absolute.
|
||||
|
||||
## [1.4.1](https://github.com/Ousret/charset_normalizer/compare/1.4.0...1.4.1) (2021-05-28)
|
||||
### Fixed
|
||||
- Logger configuration/usage no longer conflict with others (PR #44)
|
||||
|
||||
## [1.4.0](https://github.com/Ousret/charset_normalizer/compare/1.3.9...1.4.0) (2021-05-21)
|
||||
### Removed
|
||||
- Using standard logging instead of using the package loguru.
|
||||
- Dropping nose test framework in favor of the maintained pytest.
|
||||
- Choose to not use dragonmapper package to help with gibberish Chinese/CJK text.
|
||||
- Require cached_property only for Python 3.5 due to constraint. Dropping for every other interpreter version.
|
||||
- Stop support for UTF-7 that does not contain a SIG.
|
||||
- Dropping PrettyTable, replaced with pure JSON output in CLI.
|
||||
|
||||
### Fixed
|
||||
- BOM marker in a CharsetNormalizerMatch instance could be False in rare cases even if obviously present. Due to the sub-match factoring process.
|
||||
- Not searching properly for the BOM when trying utf32/16 parent codec.
|
||||
|
||||
### Changed
|
||||
- Improving the package final size by compressing frequencies.json.
|
||||
- Huge improvement over the larges payload.
|
||||
|
||||
### Added
|
||||
- CLI now produces JSON consumable output.
|
||||
- Return ASCII if given sequences fit. Given reasonable confidence.
|
||||
|
||||
## [1.3.9](https://github.com/Ousret/charset_normalizer/compare/1.3.8...1.3.9) (2021-05-13)
|
||||
|
||||
### Fixed
|
||||
- In some very rare cases, you may end up getting encode/decode errors due to a bad bytes payload (PR #40)
|
||||
|
||||
## [1.3.8](https://github.com/Ousret/charset_normalizer/compare/1.3.7...1.3.8) (2021-05-12)
|
||||
|
||||
### Fixed
|
||||
- Empty given payload for detection may cause an exception if trying to access the `alphabets` property. (PR #39)
|
||||
|
||||
## [1.3.7](https://github.com/Ousret/charset_normalizer/compare/1.3.6...1.3.7) (2021-05-12)
|
||||
|
||||
### Fixed
|
||||
- The legacy detect function should return UTF-8-SIG if sig is present in the payload. (PR #38)
|
||||
|
||||
## [1.3.6](https://github.com/Ousret/charset_normalizer/compare/1.3.5...1.3.6) (2021-02-09)
|
||||
|
||||
### Changed
|
||||
- Amend the previous release to allow prettytable 2.0 (PR #35)
|
||||
|
||||
## [1.3.5](https://github.com/Ousret/charset_normalizer/compare/1.3.4...1.3.5) (2021-02-08)
|
||||
|
||||
### Fixed
|
||||
- Fix error while using the package with a python pre-release interpreter (PR #33)
|
||||
|
||||
### Changed
|
||||
- Dependencies refactoring, constraints revised.
|
||||
|
||||
### Added
|
||||
- Add python 3.9 and 3.10 to the supported interpreters
|
||||
|
||||
MIT License
|
||||
|
||||
Copyright (c) 2019 TAHRI Ahmed R.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
@ -0,0 +1,35 @@
|
||||
../../../bin/normalizer,sha256=JTs1fcR2AEVygf-kmSsOiW5XOXQbSw4NHWtmwtrYT7E,264
|
||||
charset_normalizer-3.4.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
|
||||
charset_normalizer-3.4.0.dist-info/LICENSE,sha256=6zGgxaT7Cbik4yBV0lweX5w1iidS_vPNcgIT0cz-4kE,1070
|
||||
charset_normalizer-3.4.0.dist-info/METADATA,sha256=WGbEW9ehh2spNJxo1M6sEGGZWmsQ-oj2DsMjV29zoms,34159
|
||||
charset_normalizer-3.4.0.dist-info/RECORD,,
|
||||
charset_normalizer-3.4.0.dist-info/WHEEL,sha256=7B4nnId14TToQHuAKpxbDLCJbNciqBsV-mvXE2hVLJc,151
|
||||
charset_normalizer-3.4.0.dist-info/entry_points.txt,sha256=ADSTKrkXZ3hhdOVFi6DcUEHQRS0xfxDIE_pEz4wLIXA,65
|
||||
charset_normalizer-3.4.0.dist-info/top_level.txt,sha256=7ASyzePr8_xuZWJsnqJjIBtyV8vhEo0wBCv1MPRRi3Q,19
|
||||
charset_normalizer/__init__.py,sha256=UzI3xC8PhmcLRMzSgPb6minTmRq0kWznnCBJ8ZCc2XI,1577
|
||||
charset_normalizer/__main__.py,sha256=JxY8bleaENOFlLRb9HfoeZCzAMnn2A1oGR5Xm2eyqg0,73
|
||||
charset_normalizer/__pycache__/__init__.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/__main__.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/api.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/cd.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/constant.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/legacy.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/md.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/models.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/utils.cpython-312.pyc,,
|
||||
charset_normalizer/__pycache__/version.cpython-312.pyc,,
|
||||
charset_normalizer/api.py,sha256=kMyNUqrfBZU22PP0pYKrSldtYUGA24wsGlXGLAKra7c,22559
|
||||
charset_normalizer/cd.py,sha256=xwZliZcTQFA3jU0c00PRiu9MNxXTFxQkFLWmMW24ZzI,12560
|
||||
charset_normalizer/cli/__init__.py,sha256=D5ERp8P62llm2FuoMzydZ7d9rs8cvvLXqE-1_6oViPc,100
|
||||
charset_normalizer/cli/__main__.py,sha256=zX9sV_ApU1d96Wb0cS04vulstdB4F0Eh7kLn-gevfw4,10411
|
||||
charset_normalizer/cli/__pycache__/__init__.cpython-312.pyc,,
|
||||
charset_normalizer/cli/__pycache__/__main__.cpython-312.pyc,,
|
||||
charset_normalizer/constant.py,sha256=uwoW87NicWZDTLviX7le0wdoYBbhBQDA4n1JtJo77ts,40499
|
||||
charset_normalizer/legacy.py,sha256=XJjkT0hejMH8qfAKz1ts8OUiBT18t2FJP3tJgLwUWwc,2327
|
||||
charset_normalizer/md.cpython-312-x86_64-linux-gnu.so,sha256=W654QTU3QZI6eWJ0fanScAr0_O6sL0I61fyRSdC-39Y,16064
|
||||
charset_normalizer/md.py,sha256=SIIZcENrslI7h3v4GigbFN61fRyE_wiCN1z9Ii3fBRo,20138
|
||||
charset_normalizer/md__mypyc.cpython-312-x86_64-linux-gnu.so,sha256=aHbqbG6rcHNRf7bwpi57D1X8ZKAmyoVnTldPUDzCKMo,276848
|
||||
charset_normalizer/models.py,sha256=oAMAcBSEY7CngbUXJp34Wc4Rl9NKJJjGmUwW3EPtk6g,12425
|
||||
charset_normalizer/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
|
||||
charset_normalizer/utils.py,sha256=teiosMqzKjXyAHXnGdjSBOgnBZwx-SkBbCLrx0UXy8M,11894
|
||||
charset_normalizer/version.py,sha256=AX66S4ytQFdd6F5jbVU2OPMqYwFS5M3BkMvyX-3BKF8,79
|
||||
@ -0,0 +1,6 @@
|
||||
Wheel-Version: 1.0
|
||||
Generator: setuptools (75.1.0)
|
||||
Root-Is-Purelib: false
|
||||
Tag: cp312-cp312-manylinux_2_17_x86_64
|
||||
Tag: cp312-cp312-manylinux2014_x86_64
|
||||
|
||||
@ -0,0 +1,2 @@
|
||||
[console_scripts]
|
||||
normalizer = charset_normalizer.cli:cli_detect
|
||||
@ -0,0 +1 @@
|
||||
charset_normalizer
|
||||
@ -0,0 +1,4 @@
|
||||
from .cli import cli_detect
|
||||
|
||||
if __name__ == "__main__":
|
||||
cli_detect()
|
||||
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Loading…
Reference in New Issue