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Overview — Python 3.4.10 documentation
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Overview — Python 3.4.10 documentation</title> <link rel="stylesheet" href="_static/pydoctheme.css" type="text/css" /> <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: './', VERSION: '3.4.10', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="_static/jquery.js"></script> <script type="text/javascript" src="_static/underscore.js"></script> <script type="text/javascript" src="_static/doctools.js"></script> <script type="text/javascript" src="_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 3.4.10 documentation" href="_static/opensearch.xml"/> <link rel="author" title="About these documents" href="about.html" /> <link rel="copyright" title="Copyright" href="copyright.html" /> <link rel="top" title="Python 3.4.10 documentation" href="#" /> <link rel="shortcut icon" type="image/png" href="_static/py.png" /> <link rel="canonical" href="https://docs.python.org/3/index.html" /> <script type="text/javascript" src="_static/copybutton.js"></script> </head> <body> <div id="outdated-warning" style="padding: .5em; text-align: center; background-color: #FFBABA; color: #6A0E0E;"> This document is for an old version of Python that is no longer supported. You should upgrade, and read the <a href="/3/index.html"> Python documentation for the current stable release</a>. </div> <div class="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.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="#">3.4.10 Documentation</a> » </li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <h1>Python 3.4.10 documentation</h1> <p> Welcome! This is the documentation for Python 3.4.10, last updated Jun 16, 2019. </p> <p><strong>Parts of the documentation:</strong></p> <table class="contentstable" align="center"><tr> <td width="50%"> <p class="biglink"><a class="biglink" href="whatsnew/3.4.html">What's new in Python 3.4?</a><br/> <span class="linkdescr">or <a href="whatsnew/index.html">all "What's new" documents</a> since 2.0</span></p> <p class="biglink"><a class="biglink" href="tutorial/index.html">Tutorial</a><br/> <span class="linkdescr">start here</span></p> <p class="biglink"><a class="biglink" href="library/index.html">Library Reference</a><br/> <span class="linkdescr">keep this under your pillow</span></p> <p class="biglink"><a class="biglink" href="reference/index.html">Language Reference</a><br/> <span class="linkdescr">describes 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 use Python on 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