344 lines
15 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!DOCTYPE html>
<html lang="en" data-content_root="./">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" /><title>3.13.3 Documentation</title><meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" href="_static/pygments.css?v=b86133f3" />
<link rel="stylesheet" type="text/css" href="_static/pydoctheme.css?v=23252803" />
<link id="pygments_dark_css" media="(prefers-color-scheme: dark)" rel="stylesheet" type="text/css" href="_static/pygments_dark.css?v=5349f25f" />
<script src="_static/documentation_options.js?v=5d57ca2d"></script>
<script src="_static/doctools.js?v=9bcbadda"></script>
<script src="_static/sphinx_highlight.js?v=dc90522c"></script>
<script src="_static/sidebar.js"></script>
<link rel="search" type="application/opensearchdescription+xml"
title="Search within Python 3.13.3 documentation"
href="_static/opensearch.xml"/>
<link rel="author" title="About these documents" href="about.html" />
<link rel="index" title="Index" href="genindex.html" />
<link rel="search" title="Search" href="search.html" />
<link rel="copyright" title="Copyright" href="copyright.html" />
<link rel="canonical" href="https://docs.python.org/3/index.html">
<style>
@media only screen {
table.full-width-table {
width: 100%;
}
}
</style>
<link rel="stylesheet" href="_static/pydoctheme_dark.css" media="(prefers-color-scheme: dark)" id="pydoctheme_dark_css">
<link rel="shortcut icon" type="image/png" href="_static/py.svg" />
<script type="text/javascript" src="_static/copybutton.js"></script>
<script type="text/javascript" src="_static/menu.js"></script>
<script type="text/javascript" src="_static/search-focus.js"></script>
<script type="text/javascript" src="_static/themetoggle.js"></script>
<script type="text/javascript" src="_static/rtd_switcher.js"></script>
<meta name="readthedocs-addons-api-version" content="1">
<meta property="og:title" content="Python 3.13 documentation">
<meta property="og:type" content="website">
<meta property="og:url" content="https://docs.python.org/3/">
<meta property="og:site_name" content="Python documentation">
<meta property="og:description" content="The official Python documentation.">
<meta property="og:image" content="https://docs.python.org/3/_static/og-image.png">
<meta name="description" content="The official Python documentation.">
<meta property="og:image:width" content="200">
<meta property="og:image:height" content="200">
<meta name="theme-color" content="#3776ab">
</head>
<body>
<div class="mobile-nav">
<input type="checkbox" id="menuToggler" class="toggler__input" aria-controls="navigation"
aria-pressed="false" aria-expanded="false" role="button" aria-label="Menu" />
<nav class="nav-content" role="navigation">
<label for="menuToggler" class="toggler__label">
<span></span>
</label>
<span class="nav-items-wrapper">
<a href="https://www.python.org/" class="nav-logo">
<img src="_static/py.svg" alt="Python logo"/>
</a>
<span class="version_switcher_placeholder"></span>
<form role="search" class="search" action="search.html" method="get">
<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" class="search-icon">
<path fill-rule="nonzero" fill="currentColor" d="M15.5 14h-.79l-.28-.27a6.5 6.5 0 001.48-5.34c-.47-2.78-2.79-5-5.59-5.34a6.505 6.505 0 00-7.27 7.27c.34 2.8 2.56 5.12 5.34 5.59a6.5 6.5 0 005.34-1.48l.27.28v.79l4.25 4.25c.41.41 1.08.41 1.49 0 .41-.41.41-1.08 0-1.49L15.5 14zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z"></path>
</svg>
<input placeholder="Quick search" aria-label="Quick search" type="search" name="q" />
<input type="submit" value="Go"/>
</form>
</span>
</nav>
<div class="menu-wrapper">
<nav class="menu" role="navigation" aria-label="main navigation">
<div class="language_switcher_placeholder"></div>
<label class="theme-selector-label">
Theme
<select class="theme-selector" oninput="activateTheme(this.value)">
<option value="auto" selected>Auto</option>
<option value="light">Light</option>
<option value="dark">Dark</option>
</select>
</label><h3>Download</h3>
<p><a href="download.html">Download these documents</a></p>
<h3>Docs by version</h3>
<ul>
<li><a href="https://docs.python.org/">Stable</a></li>
<li><a href="https://docs.python.org/dev/">In development</a></li>
<li><a href="https://www.python.org/doc/versions/">All versions</a></li>
</ul>
<h3>Other resources</h3>
<ul>
<li><a href="https://peps.python.org/">PEP Index</a></li>
<li><a href="https://wiki.python.org/moin/BeginnersGuide">Beginner's Guide</a></li>
<li><a href="https://wiki.python.org/moin/PythonBooks">Book List</a></li>
<li><a href="https://www.python.org/doc/av/">Audio/Visual Talks</a></li>
<li><a href="https://devguide.python.org/">Python Developers Guide</a></li>
</ul>
</nav>
</div>
</div>
<div class="related" role="navigation" aria-label="Related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li><img src="_static/py.svg" alt="Python logo" style="vertical-align: middle; margin-top: -1px"/></li>
<li><a href="https://www.python.org/">Python</a> &#187;</li>
<li class="switchers">
<div class="language_switcher_placeholder"></div>
<div class="version_switcher_placeholder"></div>
</li>
<li>
</li>
<li id="cpython-language-and-version">
<a href="#">3.13.3 Documentation</a> &#187;
</li>
<li class="nav-item nav-item-this"><a href=""></a></li>
<li class="right">
<div class="inline-search" role="search">
<form class="inline-search" action="search.html" method="get">
<input placeholder="Quick search" aria-label="Quick search" type="search" name="q" id="search-box" />
<input type="submit" value="Go" />
</form>
</div>
|
</li>
<li class="right">
<label class="theme-selector-label">
Theme
<select class="theme-selector" oninput="activateTheme(this.value)">
<option value="auto" selected>Auto</option>
<option value="light">Light</option>
<option value="dark">Dark</option>
</select>
</label> |</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<h1>Python 3.13.3 documentation</h1>
<p>
Welcome! This is the official documentation for Python 3.13.3.
</p>
<p><strong>Documentation sections:</strong></p>
<table class="contentstable" align="center"><tr>
<td width="50%">
<p class="biglink"><a class="biglink" href="whatsnew/3.13.html">What's new in Python 3.13?</a><br>
<span class="linkdescr"> Or <a href="whatsnew/index.html">all "What's new" documents since Python 2.0</a></span></p>
<p class="biglink"><a class="biglink" href="tutorial/index.html">Tutorial</a><br>
<span class="linkdescr">Start here: a tour of Python's syntax and features</span></p>
<p class="biglink"><a class="biglink" href="library/index.html">Library reference</a><br>
<span class="linkdescr">Standard library and builtins</span></p>
<p class="biglink"><a class="biglink" href="reference/index.html">Language reference</a><br>
<span class="linkdescr">Syntax and language elements</span></p>
<p class="biglink"><a class="biglink" href="using/index.html">Python setup and usage</a><br>
<span class="linkdescr">How to install, configure, and use Python</span></p>
<p class="biglink"><a class="biglink" href="howto/index.html">Python HOWTOs</a><br>
<span class="linkdescr">In-depth topic manuals</span></p>
</td><td width="50%">
<p class="biglink"><a class="biglink" href="installing/index.html">Installing Python modules</a><br>
<span class="linkdescr">Third-party modules and PyPI.org</span></p>
<p class="biglink"><a class="biglink" href="distributing/index.html">Distributing Python modules</a><br>
<span class="linkdescr">Publishing modules for use by other people</span></p>
<p class="biglink"><a class="biglink" href="extending/index.html">Extending and embedding</a><br>
<span class="linkdescr">For C/C++ programmers</span></p>
<p class="biglink"><a class="biglink" href="c-api/index.html">Python's C API</a><br>
<span class="linkdescr">C API reference</span></p>
<p class="biglink"><a class="biglink" href="faq/index.html">FAQs</a><br>
<span class="linkdescr">Frequently asked questions (with answers!)</span></p>
<p class="biglink"><a class="biglink" href="deprecations/index.html">Deprecations</a><br>
<span class="linkdescr">Deprecated functionality</span></p>
</td></tr>
</table>
<p><strong>Indices, glossary, and search:</strong></p>
<table class="contentstable" align="center"><tr>
<td width="50%">
<p class="biglink"><a class="biglink" href="py-modindex.html">Global module index</a><br>
<span class="linkdescr">All modules and libraries</span></p>
<p class="biglink"><a class="biglink" href="genindex.html">General index</a><br>
<span class="linkdescr">All functions, classes, and terms</span></p>
<p class="biglink"><a class="biglink" href="glossary.html">Glossary</a><br>
<span class="linkdescr">Terms explained</span></p>
</td><td width="50%">
<p class="biglink"><a class="biglink" href="search.html">Search page</a><br>
<span class="linkdescr">Search this documentation</span></p>
<p class="biglink"><a class="biglink" href="contents.html">Complete table of contents</a><br>
<span class="linkdescr">Lists all sections and subsections</span></p>
</td></tr>
</table>
<p><strong>Project information:</strong></p>
<table class="contentstable" align="center"><tr>
<td width="50%">
<p class="biglink"><a class="biglink" href="bugs.html">Reporting issues</a></p>
<p class="biglink"><a class="biglink" href="https://devguide.python.org/documentation/help-documenting/">Contributing to Docs</a></p>
<p class="biglink"><a class="biglink" href="download.html">Download the documentation</a></p>
</td><td width="50%">
<p class="biglink"><a class="biglink" href="license.html">History and license of Python</a></p>
<p class="biglink"><a class="biglink" href="copyright.html">Copyright</a></p>
<p class="biglink"><a class="biglink" href="about.html">About the documentation</a></p>
</td></tr>
</table>
<div class="clearer"></div>
</div>
</div>
</div>
<div class="sphinxsidebar" role="navigation" aria-label="Main">
<div class="sphinxsidebarwrapper"><h3>Download</h3>
<p><a href="download.html">Download these documents</a></p>
<h3>Docs by version</h3>
<ul>
<li><a href="https://docs.python.org/">Stable</a></li>
<li><a href="https://docs.python.org/dev/">In development</a></li>
<li><a href="https://www.python.org/doc/versions/">All versions</a></li>
</ul>
<h3>Other resources</h3>
<ul>
<li><a href="https://peps.python.org/">PEP Index</a></li>
<li><a href="https://wiki.python.org/moin/BeginnersGuide">Beginner's Guide</a></li>
<li><a href="https://wiki.python.org/moin/PythonBooks">Book List</a></li>
<li><a href="https://www.python.org/doc/av/">Audio/Visual Talks</a></li>
<li><a href="https://devguide.python.org/">Python Developers Guide</a></li>
</ul>
</div>
<div id="sidebarbutton" title="Collapse sidebar">
<span>«</span>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related" role="navigation" aria-label="Related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li><img src="_static/py.svg" alt="Python logo" style="vertical-align: middle; margin-top: -1px"/></li>
<li><a href="https://www.python.org/">Python</a> &#187;</li>
<li class="switchers">
<div class="language_switcher_placeholder"></div>
<div class="version_switcher_placeholder"></div>
</li>
<li>
</li>
<li id="cpython-language-and-version">
<a href="#">3.13.3 Documentation</a> &#187;
</li>
<li class="nav-item nav-item-this"><a href=""></a></li>
<li class="right">
<div class="inline-search" role="search">
<form class="inline-search" action="search.html" method="get">
<input placeholder="Quick search" aria-label="Quick search" type="search" name="q" id="search-box" />
<input type="submit" value="Go" />
</form>
</div>
|
</li>
<li class="right">
<label class="theme-selector-label">
Theme
<select class="theme-selector" oninput="activateTheme(this.value)">
<option value="auto" selected>Auto</option>
<option value="light">Light</option>
<option value="dark">Dark</option>
</select>
</label> |</li>
</ul>
</div>
<div class="footer">
&copy;
<a href="copyright.html">
Copyright
</a>
2001-2025, Python Software Foundation.
<br />
This page is licensed under the Python Software Foundation License Version 2.
<br />
Examples, recipes, and other code in the documentation are additionally licensed under the Zero Clause BSD License.
<br />
See <a href="/license.html">History and License</a> for more information.<br />
<br />
The Python Software Foundation is a non-profit corporation.
<a href="https://www.python.org/psf/donations/">Please donate.</a>
<br />
<br />
Last updated on Apr 08, 2025 (14:33 UTC).
<a href="/bugs.html">Found a bug</a>?
<br />
Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 8.2.3.
</div>
</body>
</html>