3.13.0 Documentation

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This is the official documentation for Python 3.13.0. </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 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href="download.html">Download these documents</a></p> <h3>Docs by version</h3> <ul> <li><a href="https://docs.python.org/3.14/">Python 3.14 (in development)</a></li> <li><a href="https://docs.python.org/3.13/">Python 3.13 (stable)</a></li> <li><a href="https://docs.python.org/3.12/">Python 3.12 (stable)</a></li> <li><a href="https://docs.python.org/3.11/">Python 3.11 (security-fixes)</a></li> <li><a href="https://docs.python.org/3.10/">Python 3.10 (security-fixes)</a></li> <li><a href="https://docs.python.org/3.9/">Python 3.9 (security-fixes)</a></li> <li><a href="https://docs.python.org/3.8/">Python 3.8 (EOL)</a></li> <li><a href="https://docs.python.org/3.7/">Python 3.7 (EOL)</a></li> <li><a href="https://docs.python.org/3.6/">Python 3.6 (EOL)</a></li> <li><a href="https://docs.python.org/3.5/">Python 3.5 (EOL)</a></li> <li><a href="https://docs.python.org/3.4/">Python 3.4 (EOL)</a></li> <li><a href="https://docs.python.org/3.3/">Python 3.3 (EOL)</a></li> <li><a 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3.13.0 Documentation