<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8" /> <title>Index — Python 3.7.4 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" id="documentation_options" data-url_root="./" src="_static/documentation_options.js"></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/language_data.js"></script> <script type="text/javascript" src="_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 3.7.4 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="shortcut icon" type="image/png" href="_static/py.png" /> <link rel="canonical" href="https://docs.python.org/3/genindex-X.html" /> <script type="text/javascript" src="_static/copybutton.js"></script> <script type="text/javascript" src="_static/switchers.js"></script> <style> @media only screen { table.full-width-table { width: 100%; } } </style> </head><body> <div class="related" role="navigation" aria-label="related navigation"> <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> <span class="language_switcher_placeholder">en</span> <span class="version_switcher_placeholder">3.7.4</span> <a href="index.html">Documentation </a> » </li> <li class="right"> <div class="inline-search" style="display: none" role="search"> <form class="inline-search" action="search.html" method="get"> <input placeholder="Quick search" type="text" name="q" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('.inline-search').show(0);</script> | </li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <h1 id="index">Index – X</h1> <table style="width: 100%" class="indextable"><tr> <td style="width: 33%; vertical-align: top;"><ul> <li><a href="library/re.html#re.X">X (in module re)</a> </li> <li><a href="library/ssl.html#index-16">X509 certificate</a> </li> <li><a href="library/os.html#os.X_OK">X_OK (in module os)</a> </li> <li><a href="library/imaplib.html#imaplib.IMAP4.xatom">xatom() (imaplib.IMAP4 method)</a> </li> <li><a href="library/os.html#os.XATTR_CREATE">XATTR_CREATE (in module os)</a> </li> <li><a href="library/os.html#os.XATTR_REPLACE">XATTR_REPLACE (in module os)</a> </li> <li><a href="library/os.html#os.XATTR_SIZE_MAX">XATTR_SIZE_MAX (in module os)</a> </li> <li><a href="library/turtle.html#turtle.xcor">xcor() (in module turtle)</a> </li> <li><a href="library/xdrlib.html#index-0">XDR</a> </li> <li><a href="library/xdrlib.html#module-xdrlib">xdrlib (module)</a> </li> <li><a href="library/nntplib.html#nntplib.NNTP.xhdr">xhdr() (nntplib.NNTP method)</a> </li> <li><a href="library/html.parser.html#index-0">XHTML</a> </li> <li><a href="library/xml.dom.html#xml.dom.XHTML_NAMESPACE">XHTML_NAMESPACE (in module xml.dom)</a> </li> <li><a href="library/xml.html#module-xml">xml (module)</a> </li> <li><a href="library/xml.etree.elementtree.html#xml.etree.ElementTree.XML">XML() (in module xml.etree.ElementTree)</a> </li> <li><a href="library/xml.dom.html#module-xml.dom">xml.dom (module)</a> </li> <li><a href="library/xml.dom.minidom.html#module-xml.dom.minidom">xml.dom.minidom (module)</a> </li> <li><a href="library/xml.dom.pulldom.html#module-xml.dom.pulldom">xml.dom.pulldom (module)</a> </li> <li><a href="library/xml.etree.elementtree.html#module-xml.etree.ElementTree">xml.etree.ElementTree (module)</a> </li> <li><a href="library/pyexpat.html#module-xml.parsers.expat">xml.parsers.expat (module)</a> </li> <li><a href="library/pyexpat.html#module-xml.parsers.expat.errors">xml.parsers.expat.errors (module)</a> </li> <li><a href="library/pyexpat.html#module-xml.parsers.expat.model">xml.parsers.expat.model (module)</a> </li> <li><a href="library/xml.sax.html#module-xml.sax">xml.sax (module)</a> </li> <li><a href="library/xml.sax.handler.html#module-xml.sax.handler">xml.sax.handler (module)</a> </li> <li><a href="library/xml.sax.utils.html#module-xml.sax.saxutils">xml.sax.saxutils (module)</a> </li> <li><a href="library/xml.sax.reader.html#module-xml.sax.xmlreader">xml.sax.xmlreader (module)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_ABORTED">XML_ERROR_ABORTED (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_ASYNC_ENTITY">XML_ERROR_ASYNC_ENTITY (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF">XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_BAD_CHAR_REF">XML_ERROR_BAD_CHAR_REF (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_BINARY_ENTITY_REF">XML_ERROR_BINARY_ENTITY_REF (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING">XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_DUPLICATE_ATTRIBUTE">XML_ERROR_DUPLICATE_ATTRIBUTE (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_ENTITY_DECLARED_IN_PE">XML_ERROR_ENTITY_DECLARED_IN_PE (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_EXTERNAL_ENTITY_HANDLING">XML_ERROR_EXTERNAL_ENTITY_HANDLING (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_FEATURE_REQUIRES_XML_DTD">XML_ERROR_FEATURE_REQUIRES_XML_DTD (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_FINISHED">XML_ERROR_FINISHED (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_INCOMPLETE_PE">XML_ERROR_INCOMPLETE_PE (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_INCORRECT_ENCODING">XML_ERROR_INCORRECT_ENCODING (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_INVALID_TOKEN">XML_ERROR_INVALID_TOKEN (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_JUNK_AFTER_DOC_ELEMENT">XML_ERROR_JUNK_AFTER_DOC_ELEMENT (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_MISPLACED_XML_PI">XML_ERROR_MISPLACED_XML_PI (in module xml.parsers.expat.errors)</a> </li> </ul></td> <td style="width: 33%; vertical-align: top;"><ul> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_NO_ELEMENTS">XML_ERROR_NO_ELEMENTS (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_NO_MEMORY">XML_ERROR_NO_MEMORY (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_NOT_STANDALONE">XML_ERROR_NOT_STANDALONE (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_NOT_SUSPENDED">XML_ERROR_NOT_SUSPENDED (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_PARAM_ENTITY_REF">XML_ERROR_PARAM_ENTITY_REF (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_PARTIAL_CHAR">XML_ERROR_PARTIAL_CHAR (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_PUBLICID">XML_ERROR_PUBLICID (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_RECURSIVE_ENTITY_REF">XML_ERROR_RECURSIVE_ENTITY_REF (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_SUSPEND_PE">XML_ERROR_SUSPEND_PE (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_SUSPENDED">XML_ERROR_SUSPENDED (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_SYNTAX">XML_ERROR_SYNTAX (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_TAG_MISMATCH">XML_ERROR_TAG_MISMATCH (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_TEXT_DECL">XML_ERROR_TEXT_DECL (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_UNBOUND_PREFIX">XML_ERROR_UNBOUND_PREFIX (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_UNCLOSED_CDATA_SECTION">XML_ERROR_UNCLOSED_CDATA_SECTION (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_UNCLOSED_TOKEN">XML_ERROR_UNCLOSED_TOKEN (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_UNDECLARING_PREFIX">XML_ERROR_UNDECLARING_PREFIX (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_UNDEFINED_ENTITY">XML_ERROR_UNDEFINED_ENTITY (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_UNEXPECTED_STATE">XML_ERROR_UNEXPECTED_STATE (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_UNKNOWN_ENCODING">XML_ERROR_UNKNOWN_ENCODING (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.errors.XML_ERROR_XML_DECL">XML_ERROR_XML_DECL (in module xml.parsers.expat.errors)</a> </li> <li><a href="library/xml.dom.html#xml.dom.XML_NAMESPACE">XML_NAMESPACE (in module xml.dom)</a> </li> <li><a href="library/codecs.html#codecs.xmlcharrefreplace_errors">xmlcharrefreplace_errors() (in module codecs)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.xmlparser.XmlDeclHandler">XmlDeclHandler() (xml.parsers.expat.xmlparser method)</a> </li> <li><a href="library/xml.sax.utils.html#xml.sax.saxutils.XMLFilterBase">XMLFilterBase (class in xml.sax.saxutils)</a> </li> <li><a href="library/xml.sax.utils.html#xml.sax.saxutils.XMLGenerator">XMLGenerator (class in xml.sax.saxutils)</a> </li> <li><a href="library/xml.etree.elementtree.html#xml.etree.ElementTree.XMLID">XMLID() (in module xml.etree.ElementTree)</a> </li> <li><a href="library/xml.dom.html#xml.dom.XMLNS_NAMESPACE">XMLNS_NAMESPACE (in module xml.dom)</a> </li> <li><a href="library/xml.etree.elementtree.html#xml.etree.ElementTree.XMLParser">XMLParser (class in xml.etree.ElementTree)</a> </li> <li><a href="library/pyexpat.html#xml.parsers.expat.XMLParserType">XMLParserType (in module xml.parsers.expat)</a> </li> <li><a href="library/xml.etree.elementtree.html#xml.etree.ElementTree.XMLPullParser">XMLPullParser (class in xml.etree.ElementTree)</a> </li> <li><a href="library/xml.sax.reader.html#xml.sax.xmlreader.XMLReader">XMLReader (class in xml.sax.xmlreader)</a> </li> <li><a href="library/xmlrpc.client.html#module-xmlrpc.client">xmlrpc.client (module)</a> </li> <li><a href="library/xmlrpc.server.html#module-xmlrpc.server">xmlrpc.server (module)</a> </li> <li> xor <ul> <li><a href="reference/expressions.html#index-73">bitwise</a> </li> </ul></li> <li><a href="library/operator.html#operator.xor">xor() (in module operator)</a> </li> <li><a href="library/nntplib.html#nntplib.NNTP.xover">xover() (nntplib.NNTP method)</a> </li> <li><a href="library/nntplib.html#nntplib.NNTP.xpath">xpath() (nntplib.NNTP method)</a> </li> <li><a href="library/2to3.html#2to3fixer-xrange">xrange (2to3 fixer)</a> </li> <li><a href="library/2to3.html#2to3fixer-xreadlines">xreadlines (2to3 fixer)</a> </li> <li><a href="library/tkinter.ttk.html#tkinter.ttk.Treeview.xview">xview() (tkinter.ttk.Treeview method)</a> </li> </ul></td> </tr></table> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> </div> </div> <div class="clearer"></div> </div> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="genindex.html" 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