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  <div class="section" id="structured-markup-processing-tools">
<span id="markup"></span><h1>20. Structured Markup Processing Tools<a class="headerlink" href="#structured-markup-processing-tools" title="Permalink to this headline">¶</a></h1>
<p>Python supports a variety of modules to work with various forms of structured
data markup.  This includes modules to work with the Standard Generalized Markup
Language (SGML) and the Hypertext Markup Language (HTML), and several interfaces
for working with the Extensible Markup Language (XML).</p>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="html.html">20.1. <code class="docutils literal notranslate"><span class="pre">html</span></code> — HyperText Markup Language support</a></li>
<li class="toctree-l1"><a class="reference internal" href="html.parser.html">20.2. <code class="docutils literal notranslate"><span class="pre">html.parser</span></code> — Simple HTML and XHTML parser</a><ul>
<li class="toctree-l2"><a class="reference internal" href="html.parser.html#example-html-parser-application">20.2.1. Example HTML Parser Application</a></li>
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<li class="toctree-l1"><a class="reference internal" href="html.entities.html">20.3. <code class="docutils literal notranslate"><span class="pre">html.entities</span></code> — Definitions of HTML general entities</a></li>
<li class="toctree-l1"><a class="reference internal" href="xml.html">20.4. XML Processing Modules</a><ul>
<li class="toctree-l2"><a class="reference internal" href="xml.html#xml-vulnerabilities">20.4.1. XML vulnerabilities</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.html#the-defusedxml-and-defusedexpat-packages">20.4.2. The <code class="docutils literal notranslate"><span class="pre">defusedxml</span></code> and <code class="docutils literal notranslate"><span class="pre">defusedexpat</span></code> Packages</a></li>
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<li class="toctree-l1"><a class="reference internal" href="xml.etree.elementtree.html">20.5. <code class="docutils literal notranslate"><span class="pre">xml.etree.ElementTree</span></code> — The ElementTree XML API</a><ul>
<li class="toctree-l2"><a class="reference internal" href="xml.etree.elementtree.html#tutorial">20.5.1. Tutorial</a><ul>
<li class="toctree-l3"><a class="reference internal" href="xml.etree.elementtree.html#xml-tree-and-elements">20.5.1.1. XML tree and elements</a></li>
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<li class="toctree-l3"><a class="reference internal" href="xml.etree.elementtree.html#pull-api-for-non-blocking-parsing">20.5.1.3. Pull API for non-blocking parsing</a></li>
<li class="toctree-l3"><a class="reference internal" href="xml.etree.elementtree.html#finding-interesting-elements">20.5.1.4. Finding interesting elements</a></li>
<li class="toctree-l3"><a class="reference internal" href="xml.etree.elementtree.html#modifying-an-xml-file">20.5.1.5. Modifying an XML File</a></li>
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<li class="toctree-l3"><a class="reference internal" href="xml.dom.html#domimplementation-objects">20.6.2.1. DOMImplementation Objects</a></li>
<li class="toctree-l3"><a class="reference internal" href="xml.dom.html#node-objects">20.6.2.2. Node Objects</a></li>
<li class="toctree-l3"><a class="reference internal" href="xml.dom.html#nodelist-objects">20.6.2.3. NodeList Objects</a></li>
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<li class="toctree-l3"><a class="reference internal" href="xml.dom.html#text-and-cdatasection-objects">20.6.2.10. Text and CDATASection Objects</a></li>
<li class="toctree-l3"><a class="reference internal" href="xml.dom.html#processinginstruction-objects">20.6.2.11. ProcessingInstruction Objects</a></li>
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<li class="toctree-l2"><a class="reference internal" href="xml.dom.html#conformance">20.6.3. Conformance</a><ul>
<li class="toctree-l3"><a class="reference internal" href="xml.dom.html#type-mapping">20.6.3.1. Type Mapping</a></li>
<li class="toctree-l3"><a class="reference internal" href="xml.dom.html#accessor-methods">20.6.3.2. Accessor Methods</a></li>
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<li class="toctree-l1"><a class="reference internal" href="xml.dom.minidom.html">20.7. <code class="docutils literal notranslate"><span class="pre">xml.dom.minidom</span></code> — Minimal DOM implementation</a><ul>
<li class="toctree-l2"><a class="reference internal" href="xml.dom.minidom.html#dom-objects">20.7.1. DOM Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.dom.minidom.html#dom-example">20.7.2. DOM Example</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.dom.minidom.html#minidom-and-the-dom-standard">20.7.3. minidom and the DOM standard</a></li>
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<li class="toctree-l1"><a class="reference internal" href="xml.dom.pulldom.html">20.8. <code class="docutils literal notranslate"><span class="pre">xml.dom.pulldom</span></code> — Support for building partial DOM trees</a><ul>
<li class="toctree-l2"><a class="reference internal" href="xml.dom.pulldom.html#domeventstream-objects">20.8.1. DOMEventStream Objects</a></li>
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<li class="toctree-l2"><a class="reference internal" href="xml.sax.handler.html#contenthandler-objects">20.10.1. ContentHandler Objects</a></li>
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<li class="toctree-l2"><a class="reference internal" href="xml.sax.handler.html#entityresolver-objects">20.10.3. EntityResolver Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.sax.handler.html#errorhandler-objects">20.10.4. ErrorHandler Objects</a></li>
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<li class="toctree-l1"><a class="reference internal" href="xml.sax.reader.html">20.12. <code class="docutils literal notranslate"><span class="pre">xml.sax.xmlreader</span></code> — Interface for XML parsers</a><ul>
<li class="toctree-l2"><a class="reference internal" href="xml.sax.reader.html#xmlreader-objects">20.12.1. XMLReader Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.sax.reader.html#incrementalparser-objects">20.12.2. IncrementalParser Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.sax.reader.html#locator-objects">20.12.3. Locator Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.sax.reader.html#inputsource-objects">20.12.4. InputSource Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.sax.reader.html#the-attributes-interface">20.12.5. The <code class="docutils literal notranslate"><span class="pre">Attributes</span></code> Interface</a></li>
<li class="toctree-l2"><a class="reference internal" href="xml.sax.reader.html#the-attributesns-interface">20.12.6. The <code class="docutils literal notranslate"><span class="pre">AttributesNS</span></code> Interface</a></li>
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<li class="toctree-l1"><a class="reference internal" href="pyexpat.html">20.13. <code class="docutils literal notranslate"><span class="pre">xml.parsers.expat</span></code> — Fast XML parsing using Expat</a><ul>
<li class="toctree-l2"><a class="reference internal" href="pyexpat.html#xmlparser-objects">20.13.1. XMLParser Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="pyexpat.html#expaterror-exceptions">20.13.2. ExpatError Exceptions</a></li>
<li class="toctree-l2"><a class="reference internal" href="pyexpat.html#example">20.13.3. Example</a></li>
<li class="toctree-l2"><a class="reference internal" href="pyexpat.html#module-xml.parsers.expat.model">20.13.4. Content Model Descriptions</a></li>
<li class="toctree-l2"><a class="reference internal" href="pyexpat.html#module-xml.parsers.expat.errors">20.13.5. Expat error constants</a></li>
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