doc/html/api/lxml.html.HtmlElement-class.html

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   6   <title>lxml.html.HtmlElement</title>
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  41 <table width="100%" cellpadding="0" cellspacing="0">
  42   <tr valign="top">
  43     <td width="100%">
  44       <span class="breadcrumbs">
  45         lxml ::
  46         html ::
  47         HtmlElement ::
  48         Class&nbsp;HtmlElement
  49       </span>
  50     </td>
  51     <td>
  52       <table cellpadding="0" cellspacing="0">
  53         <!-- hide/show private -->
  54         <tr><td align="right"><span class="options">[<a href="javascript:void(0);" class="privatelink"
  55     onclick="toggle_private();">hide&nbsp;private</a>]</span></td></tr>
  56         <tr><td align="right"><span class="options"
  57             >[<a href="frames.html" target="_top">frames</a
  58             >]&nbsp;|&nbsp;<a href="lxml.html.HtmlElement-class.html"
  59             target="_top">no&nbsp;frames</a>]</span></td></tr>
  60       </table>
  61     </td>
  62   </tr>
  63 </table>
  64 <!-- ==================== CLASS DESCRIPTION ==================== -->
  65 <h1 class="epydoc">Class HtmlElement</h1><p class="nomargin-top"><span class="codelink"><a href="lxml.html-pysrc.html#HtmlElement">source&nbsp;code</a></span></p>
  66 <pre class="base-tree">
  67     object --+
  68              |
  69 <a href="lxml.etree._Element-class.html" onclick="show_private();">etree._Element</a> --+
  70                  |
  71  <a href="lxml.etree.ElementBase-class.html">etree.ElementBase</a> --+
  72                      |
  73         object --+   |
  74                  |   |
  75          <a href="lxml.html.HtmlMixin-class.html">HtmlMixin</a> --+
  76                      |
  77                     <strong class="uidshort">HtmlElement</strong>
  78 </pre>
  79
  80 <dl><dt>Known Subclasses:</dt>
  81 <dd>
  82       <ul class="subclass-list">
  83 <li><a href="lxml.html.FormElement-class.html">FormElement</a></li><li>, <a href="lxml.html.InputElement-class.html">InputElement</a></li><li>, <a href="lxml.html.LabelElement-class.html">LabelElement</a></li><li>, <a href="lxml.html.SelectElement-class.html">SelectElement</a></li><li>, <a href="lxml.html.TextareaElement-class.html">TextareaElement</a></li>  </ul>
  84 </dd></dl>
  85
  86 <hr />
  87 <!-- ==================== INSTANCE METHODS ==================== -->
  88 <a name="section-InstanceMethods"></a>
  89 <table class="summary" border="1" cellpadding="3"
  90        cellspacing="0" width="100%" bgcolor="white">
  91 <tr bgcolor="#70b0f0" class="table-header">
  92   <td colspan="2" class="table-header">
  93     <table border="0" cellpadding="0" cellspacing="0" width="100%">
  94       <tr valign="top">
  95         <td align="left"><span class="table-header">Instance Methods</span></td>
  96         <td align="right" valign="top"
  97          ><span class="options">[<a href="#section-InstanceMethods"
  98          class="privatelink" onclick="toggle_private();"
  99          >hide private</a>]</span></td>
 100       </tr>
 101     </table>
 102   </td>
 103 </tr>
 104 <tr>
 105     <td width="15%" align="right" valign="top" class="summary">
 106       <span class="summary-type">&nbsp;</span>
 107     </td><td class="summary">
 108       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 109         <tr>
 110           <td><span class="summary-sig"><a href="lxml.html.HtmlElement-class.html#cssselect" class="summary-sig-name">cssselect</a>(<span class="summary-sig-arg">self</span>,
 111         <span class="summary-sig-arg">expr</span>,
 112         <span class="summary-sig-arg">translator</span>=<span class="summary-sig-default"><code class="variable-quote">'</code><code class="variable-string">html</code><code class="variable-quote">'</code></span>)</span><br />
 113       Run the CSS expression on this element and its children,
 114 returning a list of the results.</td>
 115           <td align="right" valign="top">
 116             <span class="codelink"><a href="lxml.html-pysrc.html#HtmlElement.cssselect">source&nbsp;code</a></span>
 117
 118           </td>
 119         </tr>
 120       </table>
 121
 122     </td>
 123   </tr>
 124 <tr>
 125     <td width="15%" align="right" valign="top" class="summary">
 126       <span class="summary-type">&nbsp;</span>
 127     </td><td class="summary">
 128       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 129         <tr>
 130           <td><span class="summary-sig"><a href="lxml.html.HtmlElement-class.html#set" class="summary-sig-name">set</a>(<span class="summary-sig-arg">self</span>,
 131         <span class="summary-sig-arg">key</span>,
 132         <span class="summary-sig-arg">value</span>=<span class="summary-sig-default">None</span>)</span><br />
 133       Sets an element attribute.  If no value is provided, or if the value is None,
 134 creates a 'boolean' attribute without value, e.g. &quot;&lt;form novalidate&gt;&lt;/form&gt;&quot;
 135 for <tt class="rst-docutils literal"><span class="pre">form.set('novalidate')</span></tt>.</td>
 136           <td align="right" valign="top">
 137             <span class="codelink"><a href="lxml.html-pysrc.html#HtmlElement.set">source&nbsp;code</a></span>
 138
 139           </td>
 140         </tr>
 141       </table>
 142
 143     </td>
 144   </tr>
 145   <tr>
 146     <td colspan="2" class="summary">
 147     <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.etree.ElementBase-class.html">etree.ElementBase</a></code></b>:
 148       <code><a href="lxml.etree.ElementBase-class.html#__init__">__init__</a></code>,
 149       <code><a href="lxml.etree.ElementBase-class.html#__new__">__new__</a></code>
 150       </p>
 151     <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.etree._Element-class.html" onclick="show_private();">etree._Element</a></code></b>:
 152       <code><a href="lxml.etree._Element-class.html#__contains__">__contains__</a></code>,
 153       <code><a href="lxml.etree._Element-class.html#__copy__">__copy__</a></code>,
 154       <code><a href="lxml.etree._Element-class.html#__deepcopy__">__deepcopy__</a></code>,
 155       <code><a href="lxml.etree._Element-class.html#__delitem__">__delitem__</a></code>,
 156       <code><a href="lxml.etree._Element-class.html#__getitem__">__getitem__</a></code>,
 157       <code><a href="lxml.etree._Element-class.html#__iter__">__iter__</a></code>,
 158       <code><a href="lxml.etree._Element-class.html#__len__">__len__</a></code>,
 159       <code><a href="lxml.etree._Element-class.html#__nonzero__">__nonzero__</a></code>,
 160       <code><a href="lxml.etree._Element-class.html#__repr__">__repr__</a></code>,
 161       <code><a href="lxml.etree._Element-class.html#__reversed__">__reversed__</a></code>,
 162       <code><a href="lxml.etree._Element-class.html#__setitem__">__setitem__</a></code>,
 163       <code><a href="lxml.etree._Element-class.html#addnext">addnext</a></code>,
 164       <code><a href="lxml.etree._Element-class.html#addprevious">addprevious</a></code>,
 165       <code><a href="lxml.etree._Element-class.html#append">append</a></code>,
 166       <code><a href="lxml.etree._Element-class.html#clear">clear</a></code>,
 167       <code><a href="lxml.etree._Element-class.html#extend">extend</a></code>,
 168       <code><a href="lxml.etree._Element-class.html#find">find</a></code>,
 169       <code><a href="lxml.etree._Element-class.html#findall">findall</a></code>,
 170       <code><a href="lxml.etree._Element-class.html#findtext">findtext</a></code>,
 171       <code><a href="lxml.etree._Element-class.html#get">get</a></code>,
 172       <code><a href="lxml.etree._Element-class.html#getchildren">getchildren</a></code>,
 173       <code><a href="lxml.etree._Element-class.html#getiterator">getiterator</a></code>,
 174       <code><a href="lxml.etree._Element-class.html#getnext">getnext</a></code>,
 175       <code><a href="lxml.etree._Element-class.html#getparent">getparent</a></code>,
 176       <code><a href="lxml.etree._Element-class.html#getprevious">getprevious</a></code>,
 177       <code><a href="lxml.etree._Element-class.html#getroottree">getroottree</a></code>,
 178       <code><a href="lxml.etree._Element-class.html#index">index</a></code>,
 179       <code><a href="lxml.etree._Element-class.html#insert">insert</a></code>,
 180       <code><a href="lxml.etree._Element-class.html#items">items</a></code>,
 181       <code><a href="lxml.etree._Element-class.html#iter">iter</a></code>,
 182       <code><a href="lxml.etree._Element-class.html#iterancestors">iterancestors</a></code>,
 183       <code><a href="lxml.etree._Element-class.html#iterchildren">iterchildren</a></code>,
 184       <code><a href="lxml.etree._Element-class.html#iterdescendants">iterdescendants</a></code>,
 185       <code><a href="lxml.etree._Element-class.html#iterfind">iterfind</a></code>,
 186       <code><a href="lxml.etree._Element-class.html#itersiblings">itersiblings</a></code>,
 187       <code><a href="lxml.etree._Element-class.html#itertext">itertext</a></code>,
 188       <code><a href="lxml.etree._Element-class.html#keys">keys</a></code>,
 189       <code><a href="lxml.etree._Element-class.html#makeelement">makeelement</a></code>,
 190       <code><a href="lxml.etree._Element-class.html#remove">remove</a></code>,
 191       <code><a href="lxml.etree._Element-class.html#replace">replace</a></code>,
 192       <code><a href="lxml.etree._Element-class.html#values">values</a></code>,
 193       <code><a href="lxml.etree._Element-class.html#xpath">xpath</a></code>
 194       </p>
 195     <div class="private">    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.etree._Element-class.html" onclick="show_private();">etree._Element</a></code></b> (private):
 196       <code><a href="lxml.etree._Element-class.html#_init" onclick="show_private();">_init</a></code>
 197       </p></div>
 198     <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.html.HtmlMixin-class.html">HtmlMixin</a></code></b>:
 199       <code><a href="lxml.html.HtmlMixin-class.html#drop_tag">drop_tag</a></code>,
 200       <code><a href="lxml.html.HtmlMixin-class.html#drop_tree">drop_tree</a></code>,
 201       <code><a href="lxml.html.HtmlMixin-class.html#find_class">find_class</a></code>,
 202       <code><a href="lxml.html.HtmlMixin-class.html#find_rel_links">find_rel_links</a></code>,
 203       <code><a href="lxml.html.HtmlMixin-class.html#get_element_by_id">get_element_by_id</a></code>,
 204       <code><a href="lxml.html.HtmlMixin-class.html#iterlinks">iterlinks</a></code>,
 205       <code><a href="lxml.html.HtmlMixin-class.html#make_links_absolute">make_links_absolute</a></code>,
 206       <code><a href="lxml.html.HtmlMixin-class.html#resolve_base_href">resolve_base_href</a></code>,
 207       <code><a href="lxml.html.HtmlMixin-class.html#rewrite_links">rewrite_links</a></code>,
 208       <code><a href="lxml.html.HtmlMixin-class.html#text_content">text_content</a></code>
 209       </p>
 210     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
 211       <code>__delattr__</code>,
 212       <code>__format__</code>,
 213       <code>__getattribute__</code>,
 214       <code>__hash__</code>,
 215       <code>__reduce__</code>,
 216       <code>__reduce_ex__</code>,
 217       <code>__setattr__</code>,
 218       <code>__sizeof__</code>,
 219       <code>__str__</code>,
 220       <code>__subclasshook__</code>
 221       </p>
 222     </td>
 223   </tr>
 224 </table>
 225 <!-- ==================== PROPERTIES ==================== -->
 226 <a name="section-Properties"></a>
 227 <table class="summary" border="1" cellpadding="3"
 228        cellspacing="0" width="100%" bgcolor="white">
 229 <tr bgcolor="#70b0f0" class="table-header">
 230   <td colspan="2" class="table-header">
 231     <table border="0" cellpadding="0" cellspacing="0" width="100%">
 232       <tr valign="top">
 233         <td align="left"><span class="table-header">Properties</span></td>
 234         <td align="right" valign="top"
 235          ><span class="options">[<a href="#section-Properties"
 236          class="privatelink" onclick="toggle_private();"
 237          >hide private</a>]</span></td>
 238       </tr>
 239     </table>
 240   </td>
 241 </tr>
 242   <tr>
 243     <td colspan="2" class="summary">
 244     <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.etree._Element-class.html" onclick="show_private();">etree._Element</a></code></b>:
 245       <code><a href="lxml.etree._Element-class.html#attrib">attrib</a></code>,
 246       <code><a href="lxml.etree._Element-class.html#base">base</a></code>,
 247       <code><a href="lxml.etree._Element-class.html#nsmap">nsmap</a></code>,
 248       <code><a href="lxml.etree._Element-class.html#prefix">prefix</a></code>,
 249       <code><a href="lxml.etree._Element-class.html#sourceline">sourceline</a></code>,
 250       <code><a href="lxml.etree._Element-class.html#tag">tag</a></code>,
 251       <code><a href="lxml.etree._Element-class.html#tail">tail</a></code>,
 252       <code><a href="lxml.etree._Element-class.html#text">text</a></code>
 253       </p>
 254     <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.html.HtmlMixin-class.html">HtmlMixin</a></code></b>:
 255       <code><a href="lxml.html.HtmlMixin-class.html#base_url">base_url</a></code>,
 256       <code><a href="lxml.html.HtmlMixin-class.html#body">body</a></code>,
 257       <code><a href="lxml.html.HtmlMixin-class.html#classes">classes</a></code>,
 258       <code><a href="lxml.html.HtmlMixin-class.html#forms">forms</a></code>,
 259       <code><a href="lxml.html.HtmlMixin-class.html#head">head</a></code>,
 260       <code><a href="lxml.html.HtmlMixin-class.html#label">label</a></code>
 261       </p>
 262     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
 263       <code>__class__</code>
 264       </p>
 265     </td>
 266   </tr>
 267 </table>
 268 <!-- ==================== METHOD DETAILS ==================== -->
 269 <a name="section-MethodDetails"></a>
 270 <table class="details" border="1" cellpadding="3"
 271        cellspacing="0" width="100%" bgcolor="white">
 272 <tr bgcolor="#70b0f0" class="table-header">
 273   <td colspan="2" class="table-header">
 274     <table border="0" cellpadding="0" cellspacing="0" width="100%">
 275       <tr valign="top">
 276         <td align="left"><span class="table-header">Method Details</span></td>
 277         <td align="right" valign="top"
 278          ><span class="options">[<a href="#section-MethodDetails"
 279          class="privatelink" onclick="toggle_private();"
 280          >hide private</a>]</span></td>
 281       </tr>
 282     </table>
 283   </td>
 284 </tr>
 285 </table>
 286 <a name="cssselect"></a>
 287 <div>
 288 <table class="details" border="1" cellpadding="3"
 289        cellspacing="0" width="100%" bgcolor="white">
 290 <tr><td>
 291   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 292   <tr valign="top"><td>
 293   <h3 class="epydoc"><span class="sig"><span class="sig-name">cssselect</span>(<span class="sig-arg">self</span>,
 294         <span class="sig-arg">expr</span>,
 295         <span class="sig-arg">translator</span>=<span class="sig-default"><code class="variable-quote">'</code><code class="variable-string">html</code><code class="variable-quote">'</code></span>)</span>
 296   </h3>
 297   </td><td align="right" valign="top"
 298     ><span class="codelink"><a href="lxml.html-pysrc.html#HtmlElement.cssselect">source&nbsp;code</a></span>&nbsp;
 299     </td>
 300   </tr></table>
 301
 302   <p>Run the CSS expression on this element and its children,
 303 returning a list of the results.</p>
 304 <p>Equivalent to lxml.cssselect.CSSSelect(expr, translator='html')(self)
 305 -- note that pre-compiling the expression can provide a substantial
 306 speedup.</p>
 307   <dl class="fields">
 308     <dt>Overrides:
 309         <a href="lxml.html.HtmlMixin-class.html#cssselect">HtmlMixin.cssselect</a>
 310     </dt>
 311   </dl>
 312 </td></tr></table>
 313 </div>
 314 <a name="set"></a>
 315 <div>
 316 <table class="details" border="1" cellpadding="3"
 317        cellspacing="0" width="100%" bgcolor="white">
 318 <tr><td>
 319   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 320   <tr valign="top"><td>
 321   <h3 class="epydoc"><span class="sig"><span class="sig-name">set</span>(<span class="sig-arg">self</span>,
 322         <span class="sig-arg">key</span>,
 323         <span class="sig-arg">value</span>=<span class="sig-default">None</span>)</span>
 324   </h3>
 325   </td><td align="right" valign="top"
 326     ><span class="codelink"><a href="lxml.html-pysrc.html#HtmlElement.set">source&nbsp;code</a></span>&nbsp;
 327     </td>
 328   </tr></table>
 329
 330   Sets an element attribute.  If no value is provided, or if the value is None,
 331 creates a 'boolean' attribute without value, e.g. &quot;&lt;form novalidate&gt;&lt;/form&gt;&quot;
 332 for <tt class="rst-docutils literal"><span class="pre">form.set('novalidate')</span></tt>.
 333   <dl class="fields">
 334     <dt>Overrides:
 335         <a href="lxml.html.HtmlMixin-class.html#set">HtmlMixin.set</a>
 336     </dt>
 337   </dl>
 338 </td></tr></table>
 339 </div>
 340 <br />
 341 <!-- ==================== NAVIGATION BAR ==================== -->
 342 <table class="navbar" border="0" width="100%" cellpadding="0"
 343        bgcolor="#a0c0ff" cellspacing="0">
 344   <tr valign="middle">
 345   <!-- Home link -->
 346       <th>&nbsp;&nbsp;&nbsp;<a
 347         href="lxml-module.html">Home</a>&nbsp;&nbsp;&nbsp;</th>
 348
 349   <!-- Tree link -->
 350       <th>&nbsp;&nbsp;&nbsp;<a
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