doc/html/api/lxml.builder.ElementMaker-class.html

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  45         <a href="lxml-module.html">Package&nbsp;lxml</a> ::
  46         <a href="lxml.builder-module.html">Module&nbsp;builder</a> ::
  47         Class&nbsp;ElementMaker
  48       </span>
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  52         <!-- hide/show private -->
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  56             >[<a href="frames.html" target="_top">frames</a
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  63 <!-- ==================== CLASS DESCRIPTION ==================== -->
  64 <h1 class="epydoc">Class ElementMaker</h1><p class="nomargin-top"><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker">source&nbsp;code</a></span></p>
  65 <pre class="base-tree">
  66 object --+
  67          |
  68         <strong class="uidshort">ElementMaker</strong>
  69 </pre>
  70
  71 <hr />
  72 <p>Element generator factory.</p>
  73 <p>Unlike the ordinary Element factory, the E factory allows you to pass in
  74 more than just a tag and some optional attributes; you can also pass in
  75 text and other elements.  The text is added as either text or tail
  76 attributes, and elements are inserted at the right spot.  Some small
  77 examples:</p>
  78 <pre class="rst-literal-block">
  79 &gt;&gt;&gt; from lxml import etree as ET
  80 &gt;&gt;&gt; from lxml.builder import E
  81
  82 &gt;&gt;&gt; ET.tostring(E(&quot;tag&quot;))
  83 '&lt;tag/&gt;'
  84 &gt;&gt;&gt; ET.tostring(E(&quot;tag&quot;, &quot;text&quot;))
  85 '&lt;tag&gt;text&lt;/tag&gt;'
  86 &gt;&gt;&gt; ET.tostring(E(&quot;tag&quot;, &quot;text&quot;, key=&quot;value&quot;))
  87 '&lt;tag key=&quot;value&quot;&gt;text&lt;/tag&gt;'
  88 &gt;&gt;&gt; ET.tostring(E(&quot;tag&quot;, E(&quot;subtag&quot;, &quot;text&quot;), &quot;tail&quot;))
  89 '&lt;tag&gt;&lt;subtag&gt;text&lt;/subtag&gt;tail&lt;/tag&gt;'
  90 </pre>
  91 <p>For simple tags, the factory also allows you to write <tt class="rst-docutils literal"><span class="pre">E.tag(...)</span></tt> instead
  92 of <tt class="rst-docutils literal"><span class="pre">E('tag',</span> <span class="pre">...)</span></tt>:</p>
  93 <pre class="rst-literal-block">
  94 &gt;&gt;&gt; ET.tostring(E.tag())
  95 '&lt;tag/&gt;'
  96 &gt;&gt;&gt; ET.tostring(E.tag(&quot;text&quot;))
  97 '&lt;tag&gt;text&lt;/tag&gt;'
  98 &gt;&gt;&gt; ET.tostring(E.tag(E.subtag(&quot;text&quot;), &quot;tail&quot;))
  99 '&lt;tag&gt;&lt;subtag&gt;text&lt;/subtag&gt;tail&lt;/tag&gt;'
 100 </pre>
 101 <p>Here's a somewhat larger example; this shows how to generate HTML
 102 documents, using a mix of prepared factory functions for inline elements,
 103 nested <tt class="rst-docutils literal">E.tag</tt> calls, and embedded XHTML fragments:</p>
 104 <pre class="rst-literal-block">
 105 # some common inline elements
 106 A = E.a
 107 I = E.i
 108 B = E.b
 109
 110 def CLASS(v):
 111     # helper function, 'class' is a reserved word
 112     return {'class': v}
 113
 114 page = (
 115     E.html(
 116         E.head(
 117             E.title(&quot;This is a sample document&quot;)
 118         ),
 119         E.body(
 120             E.h1(&quot;Hello!&quot;, CLASS(&quot;title&quot;)),
 121             E.p(&quot;This is a paragraph with &quot;, B(&quot;bold&quot;), &quot; text in it!&quot;),
 122             E.p(&quot;This is another paragraph, with a &quot;,
 123                 A(&quot;link&quot;, href=&quot;http://www.python.org&quot;), &quot;.&quot;),
 124             E.p(&quot;Here are some reserved characters: &lt;spam&amp;egg&gt;.&quot;),
 125             ET.XML(&quot;&lt;p&gt;And finally, here is an embedded XHTML fragment.&lt;/p&gt;&quot;),
 126         )
 127     )
 128 )
 129
 130 print ET.tostring(page)
 131 </pre>
 132 <p>Here's a prettyprinted version of the output from the above script:</p>
 133 <pre class="rst-literal-block">
 134 &lt;html&gt;
 135   &lt;head&gt;
 136     &lt;title&gt;This is a sample document&lt;/title&gt;
 137   &lt;/head&gt;
 138   &lt;body&gt;
 139     &lt;h1 class=&quot;title&quot;&gt;Hello!&lt;/h1&gt;
 140     &lt;p&gt;This is a paragraph with &lt;b&gt;bold&lt;/b&gt; text in it!&lt;/p&gt;
 141     &lt;p&gt;This is another paragraph, with &lt;a href=&quot;http://www.python.org&quot;&gt;link&lt;/a&gt;.&lt;/p&gt;
 142     &lt;p&gt;Here are some reserved characters: &amp;lt;spam&amp;amp;egg&amp;gt;.&lt;/p&gt;
 143     &lt;p&gt;And finally, here is an embedded XHTML fragment.&lt;/p&gt;
 144   &lt;/body&gt;
 145 &lt;/html&gt;
 146 </pre>
 147 <p>For namespace support, you can pass a namespace map (<tt class="rst-docutils literal">nsmap</tt>)
 148 and/or a specific target <tt class="rst-docutils literal">namespace</tt> to the ElementMaker class:</p>
 149 <pre class="rst-literal-block">
 150 &gt;&gt;&gt; E = ElementMaker(namespace=&quot;http://my.ns/&quot;)
 151 &gt;&gt;&gt; print(ET.tostring( E.test ))
 152 &lt;test xmlns=&quot;http://my.ns/&quot;/&gt;
 153
 154 &gt;&gt;&gt; E = ElementMaker(namespace=&quot;http://my.ns/&quot;, nsmap={'p':'http://my.ns/'})
 155 &gt;&gt;&gt; print(ET.tostring( E.test ))
 156 &lt;p:test xmlns:p=&quot;http://my.ns/&quot;/&gt;
 157 </pre>
 158
 159 <!-- ==================== INSTANCE METHODS ==================== -->
 160 <a name="section-InstanceMethods"></a>
 161 <table class="summary" border="1" cellpadding="3"
 162        cellspacing="0" width="100%" bgcolor="white">
 163 <tr bgcolor="#70b0f0" class="table-header">
 164   <td colspan="2" class="table-header">
 165     <table border="0" cellpadding="0" cellspacing="0" width="100%">
 166       <tr valign="top">
 167         <td align="left"><span class="table-header">Instance Methods</span></td>
 168         <td align="right" valign="top"
 169          ><span class="options">[<a href="#section-InstanceMethods"
 170          class="privatelink" onclick="toggle_private();"
 171          >hide private</a>]</span></td>
 172       </tr>
 173     </table>
 174   </td>
 175 </tr>
 176 <tr>
 177     <td width="15%" align="right" valign="top" class="summary">
 178       <span class="summary-type">&nbsp;</span>
 179     </td><td class="summary">
 180       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 181         <tr>
 182           <td><span class="summary-sig"><a href="lxml.builder.ElementMaker-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
 183         <span class="summary-sig-arg">typemap</span>=<span class="summary-sig-default">None</span>,
 184         <span class="summary-sig-arg">namespace</span>=<span class="summary-sig-default">None</span>,
 185         <span class="summary-sig-arg">nsmap</span>=<span class="summary-sig-default">None</span>,
 186         <span class="summary-sig-arg">makeelement</span>=<span class="summary-sig-default">None</span>)</span><br />
 187       x.__init__(...) initializes x; see help(type(x)) for signature</td>
 188           <td align="right" valign="top">
 189             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__init__">source&nbsp;code</a></span>
 190
 191           </td>
 192         </tr>
 193       </table>
 194
 195     </td>
 196   </tr>
 197 <tr>
 198     <td width="15%" align="right" valign="top" class="summary">
 199       <span class="summary-type">&nbsp;</span>
 200     </td><td class="summary">
 201       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 202         <tr>
 203           <td><span class="summary-sig"><a name="__call__"></a><span class="summary-sig-name">__call__</span>(<span class="summary-sig-arg">x</span>,
 204         <span class="summary-sig-arg">...</span>)</span><br />
 205       x(...)</td>
 206           <td align="right" valign="top">
 207             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__call__">source&nbsp;code</a></span>
 208
 209           </td>
 210         </tr>
 211       </table>
 212
 213     </td>
 214   </tr>
 215 <tr>
 216     <td width="15%" align="right" valign="top" class="summary">
 217       <span class="summary-type">&nbsp;</span>
 218     </td><td class="summary">
 219       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 220         <tr>
 221           <td><span class="summary-sig"><a name="__getattr__"></a><span class="summary-sig-name">__getattr__</span>(<span class="summary-sig-arg">self</span>,
 222         <span class="summary-sig-arg">tag</span>)</span></td>
 223           <td align="right" valign="top">
 224             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__getattr__">source&nbsp;code</a></span>
 225
 226           </td>
 227         </tr>
 228       </table>
 229
 230     </td>
 231   </tr>
 232 <tr>
 233     <td width="15%" align="right" valign="top" class="summary">
 234       <span class="summary-type">&nbsp;</span>
 235     </td><td class="summary">
 236       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 237         <tr>
 238           <td><span class="summary-sig"><a href="lxml.builder.ElementMaker-class.html#__getattribute__" class="summary-sig-name">__getattribute__</a>(<span class="summary-sig-arg">...</span>)</span><br />
 239       x.__getattribute__('name') &lt;==&gt; x.name</td>
 240           <td align="right" valign="top">
 241             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__getattribute__">source&nbsp;code</a></span>
 242
 243           </td>
 244         </tr>
 245       </table>
 246
 247     </td>
 248   </tr>
 249 <tr>
 250     <td width="15%" align="right" valign="top" class="summary">
 251       <span class="summary-type">a new object with type S, a subtype of T</span>
 252     </td><td class="summary">
 253       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 254         <tr>
 255           <td><span class="summary-sig"><a href="lxml.builder.ElementMaker-class.html#__new__" class="summary-sig-name">__new__</a>(<span class="summary-sig-arg">T</span>,
 256         <span class="summary-sig-arg">S</span>,
 257         <span class="summary-sig-arg">...</span>)</span></td>
 258           <td align="right" valign="top">
 259             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__new__">source&nbsp;code</a></span>
 260
 261           </td>
 262         </tr>
 263       </table>
 264
 265     </td>
 266   </tr>
 267 <tr>
 268     <td width="15%" align="right" valign="top" class="summary">
 269       <span class="summary-type">&nbsp;</span>
 270     </td><td class="summary">
 271       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 272         <tr>
 273           <td><span class="summary-sig"><a href="lxml.builder.ElementMaker-class.html#__reduce__" class="summary-sig-name">__reduce__</a>(<span class="summary-sig-arg">...</span>)</span><br />
 274       helper for pickle</td>
 275           <td align="right" valign="top">
 276             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__reduce__">source&nbsp;code</a></span>
 277
 278           </td>
 279         </tr>
 280       </table>
 281
 282     </td>
 283   </tr>
 284 <tr>
 285     <td width="15%" align="right" valign="top" class="summary">
 286       <span class="summary-type">&nbsp;</span>
 287     </td><td class="summary">
 288       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 289         <tr>
 290           <td><span class="summary-sig"><a name="__setstate__"></a><span class="summary-sig-name">__setstate__</span>(<span class="summary-sig-arg">...</span>)</span></td>
 291           <td align="right" valign="top">
 292             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__setstate__">source&nbsp;code</a></span>
 293
 294           </td>
 295         </tr>
 296       </table>
 297
 298     </td>
 299   </tr>
 300   <tr>
 301     <td colspan="2" class="summary">
 302     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
 303       <code>__delattr__</code>,
 304       <code>__format__</code>,
 305       <code>__hash__</code>,
 306       <code>__reduce_ex__</code>,
 307       <code>__repr__</code>,
 308       <code>__setattr__</code>,
 309       <code>__sizeof__</code>,
 310       <code>__str__</code>,
 311       <code>__subclasshook__</code>
 312       </p>
 313     </td>
 314   </tr>
 315 </table>
 316 <!-- ==================== PROPERTIES ==================== -->
 317 <a name="section-Properties"></a>
 318 <table class="summary" border="1" cellpadding="3"
 319        cellspacing="0" width="100%" bgcolor="white">
 320 <tr bgcolor="#70b0f0" class="table-header">
 321   <td colspan="2" class="table-header">
 322     <table border="0" cellpadding="0" cellspacing="0" width="100%">
 323       <tr valign="top">
 324         <td align="left"><span class="table-header">Properties</span></td>
 325         <td align="right" valign="top"
 326          ><span class="options">[<a href="#section-Properties"
 327          class="privatelink" onclick="toggle_private();"
 328          >hide private</a>]</span></td>
 329       </tr>
 330     </table>
 331   </td>
 332 </tr>
 333 <tr class="private">
 334     <td width="15%" align="right" valign="top" class="summary">
 335       <span class="summary-type">&nbsp;</span>
 336     </td><td class="summary">
 337         <a name="_makeelement"></a><span class="summary-name">_makeelement</span>
 338     </td>
 339   </tr>
 340 <tr class="private">
 341     <td width="15%" align="right" valign="top" class="summary">
 342       <span class="summary-type">&nbsp;</span>
 343     </td><td class="summary">
 344         <a name="_namespace"></a><span class="summary-name">_namespace</span>
 345     </td>
 346   </tr>
 347 <tr class="private">
 348     <td width="15%" align="right" valign="top" class="summary">
 349       <span class="summary-type">&nbsp;</span>
 350     </td><td class="summary">
 351         <a name="_nsmap"></a><span class="summary-name">_nsmap</span>
 352     </td>
 353   </tr>
 354 <tr class="private">
 355     <td width="15%" align="right" valign="top" class="summary">
 356       <span class="summary-type">&nbsp;</span>
 357     </td><td class="summary">
 358         <a name="_typemap"></a><span class="summary-name">_typemap</span>
 359     </td>
 360   </tr>
 361   <tr>
 362     <td colspan="2" class="summary">
 363     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
 364       <code>__class__</code>
 365       </p>
 366     </td>
 367   </tr>
 368 </table>
 369 <!-- ==================== METHOD DETAILS ==================== -->
 370 <a name="section-MethodDetails"></a>
 371 <table class="details" border="1" cellpadding="3"
 372        cellspacing="0" width="100%" bgcolor="white">
 373 <tr bgcolor="#70b0f0" class="table-header">
 374   <td colspan="2" class="table-header">
 375     <table border="0" cellpadding="0" cellspacing="0" width="100%">
 376       <tr valign="top">
 377         <td align="left"><span class="table-header">Method Details</span></td>
 378         <td align="right" valign="top"
 379          ><span class="options">[<a href="#section-MethodDetails"
 380          class="privatelink" onclick="toggle_private();"
 381          >hide private</a>]</span></td>
 382       </tr>
 383     </table>
 384   </td>
 385 </tr>
 386 </table>
 387 <a name="__init__"></a>
 388 <div>
 389 <table class="details" border="1" cellpadding="3"
 390        cellspacing="0" width="100%" bgcolor="white">
 391 <tr><td>
 392   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 393   <tr valign="top"><td>
 394   <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
 395         <span class="sig-arg">typemap</span>=<span class="sig-default">None</span>,
 396         <span class="sig-arg">namespace</span>=<span class="sig-default">None</span>,
 397         <span class="sig-arg">nsmap</span>=<span class="sig-default">None</span>,
 398         <span class="sig-arg">makeelement</span>=<span class="sig-default">None</span>)</span>
 399     <br /><em class="fname">(Constructor)</em>
 400   </h3>
 401   </td><td align="right" valign="top"
 402     ><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__init__">source&nbsp;code</a></span>&nbsp;
 403     </td>
 404   </tr></table>
 405
 406   x.__init__(...) initializes x; see help(type(x)) for signature
 407   <dl class="fields">
 408     <dt>Overrides:
 409         object.__init__
 410     </dt>
 411   </dl>
 412 </td></tr></table>
 413 </div>
 414 <a name="__getattribute__"></a>
 415 <div>
 416 <table class="details" border="1" cellpadding="3"
 417        cellspacing="0" width="100%" bgcolor="white">
 418 <tr><td>
 419   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 420   <tr valign="top"><td>
 421   <h3 class="epydoc"><span class="sig"><span class="sig-name">__getattribute__</span>(<span class="sig-arg">...</span>)</span>
 422   </h3>
 423   </td><td align="right" valign="top"
 424     ><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__getattribute__">source&nbsp;code</a></span>&nbsp;
 425     </td>
 426   </tr></table>
 427
 428   x.__getattribute__('name') &lt;==&gt; x.name
 429   <dl class="fields">
 430     <dt>Overrides:
 431         object.__getattribute__
 432     </dt>
 433   </dl>
 434 </td></tr></table>
 435 </div>
 436 <a name="__new__"></a>
 437 <div>
 438 <table class="details" border="1" cellpadding="3"
 439        cellspacing="0" width="100%" bgcolor="white">
 440 <tr><td>
 441   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 442   <tr valign="top"><td>
 443   <h3 class="epydoc"><span class="sig"><span class="sig-name">__new__</span>(<span class="sig-arg">T</span>,
 444         <span class="sig-arg">S</span>,
 445         <span class="sig-arg">...</span>)</span>
 446   </h3>
 447   </td><td align="right" valign="top"
 448     ><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__new__">source&nbsp;code</a></span>&nbsp;
 449     </td>
 450   </tr></table>
 451
 452
 453   <dl class="fields">
 454     <dt>Returns: a new object with type S, a subtype of T</dt>
 455     <dt>Overrides:
 456         object.__new__
 457     </dt>
 458   </dl>
 459 </td></tr></table>
 460 </div>
 461 <a name="__reduce__"></a>
 462 <div>
 463 <table class="details" border="1" cellpadding="3"
 464        cellspacing="0" width="100%" bgcolor="white">
 465 <tr><td>
 466   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 467   <tr valign="top"><td>
 468   <h3 class="epydoc"><span class="sig"><span class="sig-name">__reduce__</span>(<span class="sig-arg">...</span>)</span>
 469   </h3>
 470   </td><td align="right" valign="top"
 471     ><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__reduce__">source&nbsp;code</a></span>&nbsp;
 472     </td>
 473   </tr></table>
 474
 475   helper for pickle
 476   <dl class="fields">
 477     <dt>Overrides:
 478         object.__reduce__
 479         <dd><em class="note">(inherited documentation)</em></dd>
 480     </dt>
 481   </dl>
 482 </td></tr></table>
 483 </div>
 484 <br />
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 515     <td align="left" class="footer">
 516     Generated by Epydoc 3.0.1
 517     on Wed Jan 29 12:26:21 2020
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