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  98. <li><a class="reference internal" href="#"><code class="xref py py-mod docutils literal notranslate"><span class="pre">xml.sax.xmlreader</span></code> — Interface for XML parsers</a><ul>

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  197.   <section id="module-xml.sax.xmlreader">

  198. <span id="xml-sax-xmlreader-interface-for-xml-parsers"></span><h1><a class="reference internal" href="#module-xml.sax.xmlreader" title="xml.sax.xmlreader: Interface which SAX-compliant XML parsers must implement."><code class="xref py py-mod docutils literal notranslate"><span class="pre">xml.sax.xmlreader</span></code></a> — Interface for XML parsers<a class="headerlink" href="#module-xml.sax.xmlreader" title="Link to this heading">¶</a></h1>

  199. <p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.12/Lib/xml/sax/xmlreader.py">Lib/xml/sax/xmlreader.py</a></p>

  200. <hr class="docutils" />

  201. <p>SAX parsers implement the <a class="reference internal" href="#xml.sax.xmlreader.XMLReader" title="xml.sax.xmlreader.XMLReader"><code class="xref py py-class docutils literal notranslate"><span class="pre">XMLReader</span></code></a> interface. They are implemented in

  202. a Python module, which must provide a function <code class="xref py py-func docutils literal notranslate"><span class="pre">create_parser()</span></code>. This

  203. function is invoked by  <a class="reference internal" href="xml.sax.html#xml.sax.make_parser" title="xml.sax.make_parser"><code class="xref py py-func docutils literal notranslate"><span class="pre">xml.sax.make_parser()</span></code></a> with no arguments to create

  204. a new  parser object.</p>

  205. <dl class="py class">

  206. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader">

  207. <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">xml.sax.xmlreader.</span></span><span class="sig-name descname"><span class="pre">XMLReader</span></span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader" title="Link to this definition">¶</a></dt>

  208. <dd><p>Base class which can be inherited by SAX parsers.</p>

  209. </dd></dl>

  210. 

  211. <dl class="py class">

  212. <dt class="sig sig-object py" id="xml.sax.xmlreader.IncrementalParser">

  213. <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">xml.sax.xmlreader.</span></span><span class="sig-name descname"><span class="pre">IncrementalParser</span></span><a class="headerlink" href="#xml.sax.xmlreader.IncrementalParser" title="Link to this definition">¶</a></dt>

  214. <dd><p>In some cases, it is desirable not to parse an input source at once, but to feed

  215. chunks of the document as they get available. Note that the reader will normally

  216. not read the entire file, but read it in chunks as well; still <code class="xref py py-meth docutils literal notranslate"><span class="pre">parse()</span></code>

  217. won’t return until the entire document is processed. So these interfaces should

  218. be used if the blocking behaviour of <code class="xref py py-meth docutils literal notranslate"><span class="pre">parse()</span></code> is not desirable.</p>

  219. <p>When the parser is instantiated it is ready to begin accepting data from the

  220. feed method immediately. After parsing has been finished with a call to close

  221. the reset method must be called to make the parser ready to accept new data,

  222. either from feed or using the parse method.</p>

  223. <p>Note that these methods must <em>not</em> be called during parsing, that is, after

  224. parse has been called and before it returns.</p>

  225. <p>By default, the class also implements the parse method of the XMLReader

  226. interface using the feed, close and reset methods of the IncrementalParser

  227. interface as a convenience to SAX 2.0 driver writers.</p>

  228. </dd></dl>

  229. 

  230. <dl class="py class">

  231. <dt class="sig sig-object py" id="xml.sax.xmlreader.Locator">

  232. <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">xml.sax.xmlreader.</span></span><span class="sig-name descname"><span class="pre">Locator</span></span><a class="headerlink" href="#xml.sax.xmlreader.Locator" title="Link to this definition">¶</a></dt>

  233. <dd><p>Interface for associating a SAX event with a document location. A locator object

  234. will return valid results only during calls to DocumentHandler methods; at any

  235. other time, the results are unpredictable. If information is not available,

  236. methods may return <code class="docutils literal notranslate"><span class="pre">None</span></code>.</p>

  237. </dd></dl>

  238. 

  239. <dl class="py class">

  240. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource">

  241. <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">xml.sax.xmlreader.</span></span><span class="sig-name descname"><span class="pre">InputSource</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">system_id</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource" title="Link to this definition">¶</a></dt>

  242. <dd><p>Encapsulation of the information needed by the <a class="reference internal" href="#xml.sax.xmlreader.XMLReader" title="xml.sax.xmlreader.XMLReader"><code class="xref py py-class docutils literal notranslate"><span class="pre">XMLReader</span></code></a> to read

  243. entities.</p>

  244. <p>This class may include information about the public identifier, system

  245. identifier, byte stream (possibly with character encoding information) and/or

  246. the character stream of an entity.</p>

  247. <p>Applications will create objects of this class for use in the

  248. <a class="reference internal" href="#xml.sax.xmlreader.XMLReader.parse" title="xml.sax.xmlreader.XMLReader.parse"><code class="xref py py-meth docutils literal notranslate"><span class="pre">XMLReader.parse()</span></code></a> method and for returning from

  249. EntityResolver.resolveEntity.</p>

  250. <p>An <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a> belongs to the application, the <a class="reference internal" href="#xml.sax.xmlreader.XMLReader" title="xml.sax.xmlreader.XMLReader"><code class="xref py py-class docutils literal notranslate"><span class="pre">XMLReader</span></code></a> is

  251. not allowed to modify <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a> objects passed to it from the

  252. application, although it may make copies and modify those.</p>

  253. </dd></dl>

  254. 

  255. <dl class="py class">

  256. <dt class="sig sig-object py" id="xml.sax.xmlreader.AttributesImpl">

  257. <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">xml.sax.xmlreader.</span></span><span class="sig-name descname"><span class="pre">AttributesImpl</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">attrs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.AttributesImpl" title="Link to this definition">¶</a></dt>

  258. <dd><p>This is an implementation of the <code class="xref py py-class docutils literal notranslate"><span class="pre">Attributes</span></code> interface (see section

  259. <a class="reference internal" href="#attributes-objects"><span class="std std-ref">The Attributes Interface</span></a>).  This is a dictionary-like object which

  260. represents the element attributes in a <code class="xref py py-meth docutils literal notranslate"><span class="pre">startElement()</span></code> call. In addition

  261. to the most useful dictionary operations, it supports a number of other

  262. methods as described by the interface. Objects of this class should be

  263. instantiated by readers; <em>attrs</em> must be a dictionary-like object containing

  264. a mapping from attribute names to attribute values.</p>

  265. </dd></dl>

  266. 

  267. <dl class="py class">

  268. <dt class="sig sig-object py" id="xml.sax.xmlreader.AttributesNSImpl">

  269. <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">xml.sax.xmlreader.</span></span><span class="sig-name descname"><span class="pre">AttributesNSImpl</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">attrs</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">qnames</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.AttributesNSImpl" title="Link to this definition">¶</a></dt>

  270. <dd><p>Namespace-aware variant of <a class="reference internal" href="#xml.sax.xmlreader.AttributesImpl" title="xml.sax.xmlreader.AttributesImpl"><code class="xref py py-class docutils literal notranslate"><span class="pre">AttributesImpl</span></code></a>, which will be passed to

  271. <code class="xref py py-meth docutils literal notranslate"><span class="pre">startElementNS()</span></code>. It is derived from <a class="reference internal" href="#xml.sax.xmlreader.AttributesImpl" title="xml.sax.xmlreader.AttributesImpl"><code class="xref py py-class docutils literal notranslate"><span class="pre">AttributesImpl</span></code></a>, but

  272. understands attribute names as two-tuples of <em>namespaceURI</em> and

  273. <em>localname</em>. In addition, it provides a number of methods expecting qualified

  274. names as they appear in the original document.  This class implements the

  275. <code class="xref py py-class docutils literal notranslate"><span class="pre">AttributesNS</span></code> interface (see section <a class="reference internal" href="#attributes-ns-objects"><span class="std std-ref">The AttributesNS Interface</span></a>).</p>

  276. </dd></dl>

  277. 

  278. <section id="xmlreader-objects">

  279. <span id="id1"></span><h2>XMLReader Objects<a class="headerlink" href="#xmlreader-objects" title="Link to this heading">¶</a></h2>

  280. <p>The <a class="reference internal" href="#xml.sax.xmlreader.XMLReader" title="xml.sax.xmlreader.XMLReader"><code class="xref py py-class docutils literal notranslate"><span class="pre">XMLReader</span></code></a> interface supports the following methods:</p>

  281. <dl class="py method">

  282. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.parse">

  283. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">parse</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">source</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.parse" title="Link to this definition">¶</a></dt>

  284. <dd><p>Process an input source, producing SAX events. The <em>source</em> object can be a

  285. system identifier (a string identifying the input source – typically a file

  286. name or a URL), a <a class="reference internal" href="pathlib.html#pathlib.Path" title="pathlib.Path"><code class="xref py py-class docutils literal notranslate"><span class="pre">pathlib.Path</span></code></a> or <a class="reference internal" href="../glossary.html#term-path-like-object"><span class="xref std std-term">path-like</span></a>

  287. object, or an <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a> object. When

  288. <a class="reference internal" href="#xml.sax.xmlreader.XMLReader.parse" title="xml.sax.xmlreader.XMLReader.parse"><code class="xref py py-meth docutils literal notranslate"><span class="pre">parse()</span></code></a> returns, the input is completely processed, and the parser object

  289. can be discarded or reset.</p>

  290. <div class="versionchanged">

  291. <p><span class="versionmodified changed">Changed in version 3.5: </span>Added support of character streams.</p>

  292. </div>

  293. <div class="versionchanged">

  294. <p><span class="versionmodified changed">Changed in version 3.8: </span>Added support of path-like objects.</p>

  295. </div>

  296. </dd></dl>

  297. 

  298. <dl class="py method">

  299. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.getContentHandler">

  300. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">getContentHandler</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.getContentHandler" title="Link to this definition">¶</a></dt>

  301. <dd><p>Return the current <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.ContentHandler" title="xml.sax.handler.ContentHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">ContentHandler</span></code></a>.</p>

  302. </dd></dl>

  303. 

  304. <dl class="py method">

  305. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.setContentHandler">

  306. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">setContentHandler</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">handler</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.setContentHandler" title="Link to this definition">¶</a></dt>

  307. <dd><p>Set the current <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.ContentHandler" title="xml.sax.handler.ContentHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">ContentHandler</span></code></a>.  If no

  308. <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.ContentHandler" title="xml.sax.handler.ContentHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">ContentHandler</span></code></a> is set, content events will be

  309. discarded.</p>

  310. </dd></dl>

  311. 

  312. <dl class="py method">

  313. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.getDTDHandler">

  314. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">getDTDHandler</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.getDTDHandler" title="Link to this definition">¶</a></dt>

  315. <dd><p>Return the current <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.DTDHandler" title="xml.sax.handler.DTDHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">DTDHandler</span></code></a>.</p>

  316. </dd></dl>

  317. 

  318. <dl class="py method">

  319. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.setDTDHandler">

  320. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">setDTDHandler</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">handler</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.setDTDHandler" title="Link to this definition">¶</a></dt>

  321. <dd><p>Set the current <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.DTDHandler" title="xml.sax.handler.DTDHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">DTDHandler</span></code></a>.  If no

  322. <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.DTDHandler" title="xml.sax.handler.DTDHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">DTDHandler</span></code></a> is set, DTD

  323. events will be discarded.</p>

  324. </dd></dl>

  325. 

  326. <dl class="py method">

  327. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.getEntityResolver">

  328. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">getEntityResolver</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.getEntityResolver" title="Link to this definition">¶</a></dt>

  329. <dd><p>Return the current <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.EntityResolver" title="xml.sax.handler.EntityResolver"><code class="xref py py-class docutils literal notranslate"><span class="pre">EntityResolver</span></code></a>.</p>

  330. </dd></dl>

  331. 

  332. <dl class="py method">

  333. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.setEntityResolver">

  334. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">setEntityResolver</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">handler</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.setEntityResolver" title="Link to this definition">¶</a></dt>

  335. <dd><p>Set the current <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.EntityResolver" title="xml.sax.handler.EntityResolver"><code class="xref py py-class docutils literal notranslate"><span class="pre">EntityResolver</span></code></a>.  If no

  336. <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.EntityResolver" title="xml.sax.handler.EntityResolver"><code class="xref py py-class docutils literal notranslate"><span class="pre">EntityResolver</span></code></a> is set,

  337. attempts to resolve an external entity will result in opening the system

  338. identifier for the entity, and fail if it is not available.</p>

  339. </dd></dl>

  340. 

  341. <dl class="py method">

  342. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.getErrorHandler">

  343. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">getErrorHandler</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.getErrorHandler" title="Link to this definition">¶</a></dt>

  344. <dd><p>Return the current <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.ErrorHandler" title="xml.sax.handler.ErrorHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">ErrorHandler</span></code></a>.</p>

  345. </dd></dl>

  346. 

  347. <dl class="py method">

  348. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.setErrorHandler">

  349. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">setErrorHandler</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">handler</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.setErrorHandler" title="Link to this definition">¶</a></dt>

  350. <dd><p>Set the current error handler.  If no <a class="reference internal" href="xml.sax.handler.html#xml.sax.handler.ErrorHandler" title="xml.sax.handler.ErrorHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">ErrorHandler</span></code></a>

  351. is set, errors will be raised as exceptions, and warnings will be printed.</p>

  352. </dd></dl>

  353. 

  354. <dl class="py method">

  355. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.setLocale">

  356. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">setLocale</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">locale</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.setLocale" title="Link to this definition">¶</a></dt>

  357. <dd><p>Allow an application to set the locale for errors and warnings.</p>

  358. <p>SAX parsers are not required to provide localization for errors and warnings; if

  359. they cannot support the requested locale, however, they must raise a SAX

  360. exception.  Applications may request a locale change in the middle of a parse.</p>

  361. </dd></dl>

  362. 

  363. <dl class="py method">

  364. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.getFeature">

  365. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">getFeature</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">featurename</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.getFeature" title="Link to this definition">¶</a></dt>

  366. <dd><p>Return the current setting for feature <em>featurename</em>.  If the feature is not

  367. recognized, <code class="xref py py-exc docutils literal notranslate"><span class="pre">SAXNotRecognizedException</span></code> is raised. The well-known

  368. featurenames are listed in the module <a class="reference internal" href="xml.sax.handler.html#module-xml.sax.handler" title="xml.sax.handler: Base classes for SAX event handlers."><code class="xref py py-mod docutils literal notranslate"><span class="pre">xml.sax.handler</span></code></a>.</p>

  369. </dd></dl>

  370. 

  371. <dl class="py method">

  372. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.setFeature">

  373. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">setFeature</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">featurename</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.setFeature" title="Link to this definition">¶</a></dt>

  374. <dd><p>Set the <em>featurename</em> to <em>value</em>. If the feature is not recognized,

  375. <code class="xref py py-exc docutils literal notranslate"><span class="pre">SAXNotRecognizedException</span></code> is raised. If the feature or its setting is not

  376. supported by the parser, <em>SAXNotSupportedException</em> is raised.</p>

  377. </dd></dl>

  378. 

  379. <dl class="py method">

  380. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.getProperty">

  381. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">getProperty</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">propertyname</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.getProperty" title="Link to this definition">¶</a></dt>

  382. <dd><p>Return the current setting for property <em>propertyname</em>. If the property is not

  383. recognized, a <code class="xref py py-exc docutils literal notranslate"><span class="pre">SAXNotRecognizedException</span></code> is raised. The well-known

  384. propertynames are listed in the module <a class="reference internal" href="xml.sax.handler.html#module-xml.sax.handler" title="xml.sax.handler: Base classes for SAX event handlers."><code class="xref py py-mod docutils literal notranslate"><span class="pre">xml.sax.handler</span></code></a>.</p>

  385. </dd></dl>

  386. 

  387. <dl class="py method">

  388. <dt class="sig sig-object py" id="xml.sax.xmlreader.XMLReader.setProperty">

  389. <span class="sig-prename descclassname"><span class="pre">XMLReader.</span></span><span class="sig-name descname"><span class="pre">setProperty</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">propertyname</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.XMLReader.setProperty" title="Link to this definition">¶</a></dt>

  390. <dd><p>Set the <em>propertyname</em> to <em>value</em>. If the property is not recognized,

  391. <code class="xref py py-exc docutils literal notranslate"><span class="pre">SAXNotRecognizedException</span></code> is raised. If the property or its setting is

  392. not supported by the parser, <em>SAXNotSupportedException</em> is raised.</p>

  393. </dd></dl>

  394. 

  395. </section>

  396. <section id="incrementalparser-objects">

  397. <span id="incremental-parser-objects"></span><h2>IncrementalParser Objects<a class="headerlink" href="#incrementalparser-objects" title="Link to this heading">¶</a></h2>

  398. <p>Instances of <a class="reference internal" href="#xml.sax.xmlreader.IncrementalParser" title="xml.sax.xmlreader.IncrementalParser"><code class="xref py py-class docutils literal notranslate"><span class="pre">IncrementalParser</span></code></a> offer the following additional methods:</p>

  399. <dl class="py method">

  400. <dt class="sig sig-object py" id="xml.sax.xmlreader.IncrementalParser.feed">

  401. <span class="sig-prename descclassname"><span class="pre">IncrementalParser.</span></span><span class="sig-name descname"><span class="pre">feed</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.IncrementalParser.feed" title="Link to this definition">¶</a></dt>

  402. <dd><p>Process a chunk of <em>data</em>.</p>

  403. </dd></dl>

  404. 

  405. <dl class="py method">

  406. <dt class="sig sig-object py" id="xml.sax.xmlreader.IncrementalParser.close">

  407. <span class="sig-prename descclassname"><span class="pre">IncrementalParser.</span></span><span class="sig-name descname"><span class="pre">close</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.IncrementalParser.close" title="Link to this definition">¶</a></dt>

  408. <dd><p>Assume the end of the document. That will check well-formedness conditions that

  409. can be checked only at the end, invoke handlers, and may clean up resources

  410. allocated during parsing.</p>

  411. </dd></dl>

  412. 

  413. <dl class="py method">

  414. <dt class="sig sig-object py" id="xml.sax.xmlreader.IncrementalParser.reset">

  415. <span class="sig-prename descclassname"><span class="pre">IncrementalParser.</span></span><span class="sig-name descname"><span class="pre">reset</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.IncrementalParser.reset" title="Link to this definition">¶</a></dt>

  416. <dd><p>This method is called after close has been called to reset the parser so that it

  417. is ready to parse new documents. The results of calling parse or feed after

  418. close without calling reset are undefined.</p>

  419. </dd></dl>

  420. 

  421. </section>

  422. <section id="locator-objects">

  423. <span id="id2"></span><h2>Locator Objects<a class="headerlink" href="#locator-objects" title="Link to this heading">¶</a></h2>

  424. <p>Instances of <a class="reference internal" href="#xml.sax.xmlreader.Locator" title="xml.sax.xmlreader.Locator"><code class="xref py py-class docutils literal notranslate"><span class="pre">Locator</span></code></a> provide these methods:</p>

  425. <dl class="py method">

  426. <dt class="sig sig-object py" id="xml.sax.xmlreader.Locator.getColumnNumber">

  427. <span class="sig-prename descclassname"><span class="pre">Locator.</span></span><span class="sig-name descname"><span class="pre">getColumnNumber</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.Locator.getColumnNumber" title="Link to this definition">¶</a></dt>

  428. <dd><p>Return the column number where the current event begins.</p>

  429. </dd></dl>

  430. 

  431. <dl class="py method">

  432. <dt class="sig sig-object py" id="xml.sax.xmlreader.Locator.getLineNumber">

  433. <span class="sig-prename descclassname"><span class="pre">Locator.</span></span><span class="sig-name descname"><span class="pre">getLineNumber</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.Locator.getLineNumber" title="Link to this definition">¶</a></dt>

  434. <dd><p>Return the line number where the current event begins.</p>

  435. </dd></dl>

  436. 

  437. <dl class="py method">

  438. <dt class="sig sig-object py" id="xml.sax.xmlreader.Locator.getPublicId">

  439. <span class="sig-prename descclassname"><span class="pre">Locator.</span></span><span class="sig-name descname"><span class="pre">getPublicId</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.Locator.getPublicId" title="Link to this definition">¶</a></dt>

  440. <dd><p>Return the public identifier for the current event.</p>

  441. </dd></dl>

  442. 

  443. <dl class="py method">

  444. <dt class="sig sig-object py" id="xml.sax.xmlreader.Locator.getSystemId">

  445. <span class="sig-prename descclassname"><span class="pre">Locator.</span></span><span class="sig-name descname"><span class="pre">getSystemId</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.Locator.getSystemId" title="Link to this definition">¶</a></dt>

  446. <dd><p>Return the system identifier for the current event.</p>

  447. </dd></dl>

  448. 

  449. </section>

  450. <section id="inputsource-objects">

  451. <span id="input-source-objects"></span><h2>InputSource Objects<a class="headerlink" href="#inputsource-objects" title="Link to this heading">¶</a></h2>

  452. <dl class="py method">

  453. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.setPublicId">

  454. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">setPublicId</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">id</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.setPublicId" title="Link to this definition">¶</a></dt>

  455. <dd><p>Sets the public identifier of this <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a>.</p>

  456. </dd></dl>

  457. 

  458. <dl class="py method">

  459. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.getPublicId">

  460. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">getPublicId</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.getPublicId" title="Link to this definition">¶</a></dt>

  461. <dd><p>Returns the public identifier of this <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a>.</p>

  462. </dd></dl>

  463. 

  464. <dl class="py method">

  465. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.setSystemId">

  466. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">setSystemId</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">id</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.setSystemId" title="Link to this definition">¶</a></dt>

  467. <dd><p>Sets the system identifier of this <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a>.</p>

  468. </dd></dl>

  469. 

  470. <dl class="py method">

  471. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.getSystemId">

  472. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">getSystemId</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.getSystemId" title="Link to this definition">¶</a></dt>

  473. <dd><p>Returns the system identifier of this <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a>.</p>

  474. </dd></dl>

  475. 

  476. <dl class="py method">

  477. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.setEncoding">

  478. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">setEncoding</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">encoding</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.setEncoding" title="Link to this definition">¶</a></dt>

  479. <dd><p>Sets the character encoding of this <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a>.</p>

  480. <p>The encoding must be a string acceptable for an XML encoding declaration (see

  481. section 4.3.3 of the XML recommendation).</p>

  482. <p>The encoding attribute of the <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a> is ignored if the

  483. <a class="reference internal" href="#xml.sax.xmlreader.InputSource" title="xml.sax.xmlreader.InputSource"><code class="xref py py-class docutils literal notranslate"><span class="pre">InputSource</span></code></a> also contains a character stream.</p>

  484. </dd></dl>

  485. 

  486. <dl class="py method">

  487. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.getEncoding">

  488. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">getEncoding</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.getEncoding" title="Link to this definition">¶</a></dt>

  489. <dd><p>Get the character encoding of this InputSource.</p>

  490. </dd></dl>

  491. 

  492. <dl class="py method">

  493. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.setByteStream">

  494. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">setByteStream</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">bytefile</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.setByteStream" title="Link to this definition">¶</a></dt>

  495. <dd><p>Set the byte stream (a <a class="reference internal" href="../glossary.html#term-binary-file"><span class="xref std std-term">binary file</span></a>) for this input source.</p>

  496. <p>The SAX parser will ignore this if there is also a character stream specified,

  497. but it will use a byte stream in preference to opening a URI connection itself.</p>

  498. <p>If the application knows the character encoding of the byte stream, it should

  499. set it with the setEncoding method.</p>

  500. </dd></dl>

  501. 

  502. <dl class="py method">

  503. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.getByteStream">

  504. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">getByteStream</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.getByteStream" title="Link to this definition">¶</a></dt>

  505. <dd><p>Get the byte stream for this input source.</p>

  506. <p>The getEncoding method will return the character encoding for this byte stream,

  507. or <code class="docutils literal notranslate"><span class="pre">None</span></code> if unknown.</p>

  508. </dd></dl>

  509. 

  510. <dl class="py method">

  511. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.setCharacterStream">

  512. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">setCharacterStream</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">charfile</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.setCharacterStream" title="Link to this definition">¶</a></dt>

  513. <dd><p>Set the character stream (a <a class="reference internal" href="../glossary.html#term-text-file"><span class="xref std std-term">text file</span></a>) for this input source.</p>

  514. <p>If there is a character stream specified, the SAX parser will ignore any byte

  515. stream and will not attempt to open a URI connection to the system identifier.</p>

  516. </dd></dl>

  517. 

  518. <dl class="py method">

  519. <dt class="sig sig-object py" id="xml.sax.xmlreader.InputSource.getCharacterStream">

  520. <span class="sig-prename descclassname"><span class="pre">InputSource.</span></span><span class="sig-name descname"><span class="pre">getCharacterStream</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.InputSource.getCharacterStream" title="Link to this definition">¶</a></dt>

  521. <dd><p>Get the character stream for this input source.</p>

  522. </dd></dl>

  523. 

  524. </section>

  525. <section id="the-attributes-interface">

  526. <span id="attributes-objects"></span><h2>The <code class="xref py py-class docutils literal notranslate"><span class="pre">Attributes</span></code> Interface<a class="headerlink" href="#the-attributes-interface" title="Link to this heading">¶</a></h2>

  527. <p><code class="xref py py-class docutils literal notranslate"><span class="pre">Attributes</span></code> objects implement a portion of the <a class="reference internal" href="../glossary.html#term-mapping"><span class="xref std std-term">mapping protocol</span></a>, including the methods <code class="xref py py-meth docutils literal notranslate"><span class="pre">copy()</span></code>,

  528. <code class="xref py py-meth docutils literal notranslate"><span class="pre">get()</span></code>, <a class="reference internal" href="../reference/datamodel.html#object.__contains__" title="object.__contains__"><code class="xref py py-meth docutils literal notranslate"><span class="pre">__contains__()</span></code></a>,

  529. <code class="xref py py-meth docutils literal notranslate"><span class="pre">items()</span></code>, <code class="xref py py-meth docutils literal notranslate"><span class="pre">keys()</span></code>,

  530. and <code class="xref py py-meth docutils literal notranslate"><span class="pre">values()</span></code>.  The following methods

  531. are also provided:</p>

  532. <dl class="py method">

  533. <dt class="sig sig-object py" id="xml.sax.xmlreader.Attributes.getLength">

  534. <span class="sig-prename descclassname"><span class="pre">Attributes.</span></span><span class="sig-name descname"><span class="pre">getLength</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.Attributes.getLength" title="Link to this definition">¶</a></dt>

  535. <dd><p>Return the number of attributes.</p>

  536. </dd></dl>

  537. 

  538. <dl class="py method">

  539. <dt class="sig sig-object py" id="xml.sax.xmlreader.Attributes.getNames">

  540. <span class="sig-prename descclassname"><span class="pre">Attributes.</span></span><span class="sig-name descname"><span class="pre">getNames</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.Attributes.getNames" title="Link to this definition">¶</a></dt>

  541. <dd><p>Return the names of the attributes.</p>

  542. </dd></dl>

  543. 

  544. <dl class="py method">

  545. <dt class="sig sig-object py" id="xml.sax.xmlreader.Attributes.getType">

  546. <span class="sig-prename descclassname"><span class="pre">Attributes.</span></span><span class="sig-name descname"><span class="pre">getType</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">name</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.Attributes.getType" title="Link to this definition">¶</a></dt>

  547. <dd><p>Returns the type of the attribute <em>name</em>, which is normally <code class="docutils literal notranslate"><span class="pre">'CDATA'</span></code>.</p>

  548. </dd></dl>

  549. 

  550. <dl class="py method">

  551. <dt class="sig sig-object py" id="xml.sax.xmlreader.Attributes.getValue">

  552. <span class="sig-prename descclassname"><span class="pre">Attributes.</span></span><span class="sig-name descname"><span class="pre">getValue</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">name</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.Attributes.getValue" title="Link to this definition">¶</a></dt>

  553. <dd><p>Return the value of attribute <em>name</em>.</p>

  554. </dd></dl>

  555. 

  556. </section>

  557. <section id="the-attributesns-interface">

  558. <span id="attributes-ns-objects"></span><h2>The <code class="xref py py-class docutils literal notranslate"><span class="pre">AttributesNS</span></code> Interface<a class="headerlink" href="#the-attributesns-interface" title="Link to this heading">¶</a></h2>

  559. <p>This interface is a subtype of the <code class="xref py py-class docutils literal notranslate"><span class="pre">Attributes</span></code> interface (see section

  560. <a class="reference internal" href="#attributes-objects"><span class="std std-ref">The Attributes Interface</span></a>).  All methods supported by that interface are also

  561. available on <code class="xref py py-class docutils literal notranslate"><span class="pre">AttributesNS</span></code> objects.</p>

  562. <p>The following methods are also available:</p>

  563. <dl class="py method">

  564. <dt class="sig sig-object py" id="xml.sax.xmlreader.AttributesNS.getValueByQName">

  565. <span class="sig-prename descclassname"><span class="pre">AttributesNS.</span></span><span class="sig-name descname"><span class="pre">getValueByQName</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">name</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.AttributesNS.getValueByQName" title="Link to this definition">¶</a></dt>

  566. <dd><p>Return the value for a qualified name.</p>

  567. </dd></dl>

  568. 

  569. <dl class="py method">

  570. <dt class="sig sig-object py" id="xml.sax.xmlreader.AttributesNS.getNameByQName">

  571. <span class="sig-prename descclassname"><span class="pre">AttributesNS.</span></span><span class="sig-name descname"><span class="pre">getNameByQName</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">name</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.AttributesNS.getNameByQName" title="Link to this definition">¶</a></dt>

  572. <dd><p>Return the <code class="docutils literal notranslate"><span class="pre">(namespace,</span> <span class="pre">localname)</span></code> pair for a qualified <em>name</em>.</p>

  573. </dd></dl>

  574. 

  575. <dl class="py method">

  576. <dt class="sig sig-object py" id="xml.sax.xmlreader.AttributesNS.getQNameByName">

  577. <span class="sig-prename descclassname"><span class="pre">AttributesNS.</span></span><span class="sig-name descname"><span class="pre">getQNameByName</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">name</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.AttributesNS.getQNameByName" title="Link to this definition">¶</a></dt>

  578. <dd><p>Return the qualified name for a <code class="docutils literal notranslate"><span class="pre">(namespace,</span> <span class="pre">localname)</span></code> pair.</p>

  579. </dd></dl>

  580. 

  581. <dl class="py method">

  582. <dt class="sig sig-object py" id="xml.sax.xmlreader.AttributesNS.getQNames">

  583. <span class="sig-prename descclassname"><span class="pre">AttributesNS.</span></span><span class="sig-name descname"><span class="pre">getQNames</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#xml.sax.xmlreader.AttributesNS.getQNames" title="Link to this definition">¶</a></dt>

  584. <dd><p>Return the qualified names of all attributes.</p>

  585. </dd></dl>

  586. 

  587. </section>

  588. </section>

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  599.     <ul>

  600. <li><a class="reference internal" href="#"><code class="xref py py-mod docutils literal notranslate"><span class="pre">xml.sax.xmlreader</span></code> — Interface for XML parsers</a><ul>

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