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="__reduce_cython__"></a><span class="summary-sig-name">__reduce_cython__</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.__reduce_cython__">source&nbsp;code</a></span>
 293
 294           </td>
 295         </tr>
 296       </table>
 297
 298     </td>
 299   </tr>
 300 <tr>
 301     <td width="15%" align="right" valign="top" class="summary">
 302       <span class="summary-type">&nbsp;</span>
 303     </td><td class="summary">
 304       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 305         <tr>
 306           <td><span class="summary-sig"><a name="__setstate__"></a><span class="summary-sig-name">__setstate__</span>(<span class="summary-sig-arg">...</span>)</span></td>
 307           <td align="right" valign="top">
 308             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__setstate__">source&nbsp;code</a></span>
 309
 310           </td>
 311         </tr>
 312       </table>
 313
 314     </td>
 315   </tr>
 316 <tr>
 317     <td width="15%" align="right" valign="top" class="summary">
 318       <span class="summary-type">&nbsp;</span>
 319     </td><td class="summary">
 320       <table width="100%" cellpadding="0" cellspacing="0" border="0">
 321         <tr>
 322           <td><span class="summary-sig"><a name="__setstate_cython__"></a><span class="summary-sig-name">__setstate_cython__</span>(<span class="summary-sig-arg">...</span>)</span></td>
 323           <td align="right" valign="top">
 324             <span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__setstate_cython__">source&nbsp;code</a></span>
 325
 326           </td>
 327         </tr>
 328       </table>
 329
 330     </td>
 331   </tr>
 332   <tr>
 333     <td colspan="2" class="summary">
 334     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
 335       <code>__delattr__</code>,
 336       <code>__format__</code>,
 337       <code>__hash__</code>,
 338       <code>__reduce_ex__</code>,
 339       <code>__repr__</code>,
 340       <code>__setattr__</code>,
 341       <code>__sizeof__</code>,
 342       <code>__str__</code>,
 343       <code>__subclasshook__</code>
 344       </p>
 345     </td>
 346   </tr>
 347 </table>
 348 <!-- ==================== PROPERTIES ==================== -->
 349 <a name="section-Properties"></a>
 350 <table class="summary" border="1" cellpadding="3"
 351        cellspacing="0" width="100%" bgcolor="white">
 352 <tr bgcolor="#70b0f0" class="table-header">
 353   <td colspan="2" class="table-header">
 354     <table border="0" cellpadding="0" cellspacing="0" width="100%">
 355       <tr valign="top">
 356         <td align="left"><span class="table-header">Properties</span></td>
 357         <td align="right" valign="top"
 358          ><span class="options">[<a href="#section-Properties"
 359          class="privatelink" onclick="toggle_private();"
 360          >hide private</a>]</span></td>
 361       </tr>
 362     </table>
 363   </td>
 364 </tr>
 365 <tr class="private">
 366     <td width="15%" align="right" valign="top" class="summary">
 367       <span class="summary-type">&nbsp;</span>
 368     </td><td class="summary">
 369         <a name="_makeelement"></a><span class="summary-name">_makeelement</span>
 370     </td>
 371   </tr>
 372 <tr class="private">
 373     <td width="15%" align="right" valign="top" class="summary">
 374       <span class="summary-type">&nbsp;</span>
 375     </td><td class="summary">
 376         <a name="_namespace"></a><span class="summary-name">_namespace</span>
 377     </td>
 378   </tr>
 379 <tr class="private">
 380     <td width="15%" align="right" valign="top" class="summary">
 381       <span class="summary-type">&nbsp;</span>
 382     </td><td class="summary">
 383         <a name="_nsmap"></a><span class="summary-name">_nsmap</span>
 384     </td>
 385   </tr>
 386 <tr class="private">
 387     <td width="15%" align="right" valign="top" class="summary">
 388       <span class="summary-type">&nbsp;</span>
 389     </td><td class="summary">
 390         <a name="_typemap"></a><span class="summary-name">_typemap</span>
 391     </td>
 392   </tr>
 393   <tr>
 394     <td colspan="2" class="summary">
 395     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
 396       <code>__class__</code>
 397       </p>
 398     </td>
 399   </tr>
 400 </table>
 401 <!-- ==================== METHOD DETAILS ==================== -->
 402 <a name="section-MethodDetails"></a>
 403 <table class="details" border="1" cellpadding="3"
 404        cellspacing="0" width="100%" bgcolor="white">
 405 <tr bgcolor="#70b0f0" class="table-header">
 406   <td colspan="2" class="table-header">
 407     <table border="0" cellpadding="0" cellspacing="0" width="100%">
 408       <tr valign="top">
 409         <td align="left"><span class="table-header">Method Details</span></td>
 410         <td align="right" valign="top"
 411          ><span class="options">[<a href="#section-MethodDetails"
 412          class="privatelink" onclick="toggle_private();"
 413          >hide private</a>]</span></td>
 414       </tr>
 415     </table>
 416   </td>
 417 </tr>
 418 </table>
 419 <a name="__init__"></a>
 420 <div>
 421 <table class="details" border="1" cellpadding="3"
 422        cellspacing="0" width="100%" bgcolor="white">
 423 <tr><td>
 424   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 425   <tr valign="top"><td>
 426   <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
 427         <span class="sig-arg">typemap</span>=<span class="sig-default">None</span>,
 428         <span class="sig-arg">namespace</span>=<span class="sig-default">None</span>,
 429         <span class="sig-arg">nsmap</span>=<span class="sig-default">None</span>,
 430         <span class="sig-arg">makeelement</span>=<span class="sig-default">None</span>)</span>
 431     <br /><em class="fname">(Constructor)</em>
 432   </h3>
 433   </td><td align="right" valign="top"
 434     ><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__init__">source&nbsp;code</a></span>&nbsp;
 435     </td>
 436   </tr></table>
 437
 438   x.__init__(...) initializes x; see help(type(x)) for signature
 439   <dl class="fields">
 440     <dt>Overrides:
 441         object.__init__
 442     </dt>
 443   </dl>
 444 </td></tr></table>
 445 </div>
 446 <a name="__getattribute__"></a>
 447 <div>
 448 <table class="details" border="1" cellpadding="3"
 449        cellspacing="0" width="100%" bgcolor="white">
 450 <tr><td>
 451   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 452   <tr valign="top"><td>
 453   <h3 class="epydoc"><span class="sig"><span class="sig-name">__getattribute__</span>(<span class="sig-arg">...</span>)</span>
 454   </h3>
 455   </td><td align="right" valign="top"
 456     ><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__getattribute__">source&nbsp;code</a></span>&nbsp;
 457     </td>
 458   </tr></table>
 459
 460   x.__getattribute__('name') &lt;==&gt; x.name
 461   <dl class="fields">
 462     <dt>Overrides:
 463         object.__getattribute__
 464     </dt>
 465   </dl>
 466 </td></tr></table>
 467 </div>
 468 <a name="__new__"></a>
 469 <div>
 470 <table class="details" border="1" cellpadding="3"
 471        cellspacing="0" width="100%" bgcolor="white">
 472 <tr><td>
 473   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 474   <tr valign="top"><td>
 475   <h3 class="epydoc"><span class="sig"><span class="sig-name">__new__</span>(<span class="sig-arg">T</span>,
 476         <span class="sig-arg">S</span>,
 477         <span class="sig-arg">...</span>)</span>
 478   </h3>
 479   </td><td align="right" valign="top"
 480     ><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__new__">source&nbsp;code</a></span>&nbsp;
 481     </td>
 482   </tr></table>
 483
 484
 485   <dl class="fields">
 486     <dt>Returns: a new object with type S, a subtype of T</dt>
 487     <dt>Overrides:
 488         object.__new__
 489     </dt>
 490   </dl>
 491 </td></tr></table>
 492 </div>
 493 <a name="__reduce__"></a>
 494 <div>
 495 <table class="details" border="1" cellpadding="3"
 496        cellspacing="0" width="100%" bgcolor="white">
 497 <tr><td>
 498   <table width="100%" cellpadding="0" cellspacing="0" border="0">
 499   <tr valign="top"><td>
 500   <h3 class="epydoc"><span class="sig"><span class="sig-name">__reduce__</span>(<span class="sig-arg">...</span>)</span>
 501   </h3>
 502   </td><td align="right" valign="top"
 503     ><span class="codelink"><a href="lxml.builder-pysrc.html#ElementMaker.__reduce__">source&nbsp;code</a></span>&nbsp;
 504     </td>
 505   </tr></table>
 506
 507   helper for pickle
 508   <dl class="fields">
 509     <dt>Overrides:
 510         object.__reduce__
 511         <dd><em class="note">(inherited documentation)</em></dd>
 512     </dt>
 513   </dl>
 514 </td></tr></table>
 515 </div>
 516 <br />
 517 <!-- ==================== NAVIGATION BAR ==================== -->
 518 <table class="navbar" border="0" width="100%" cellpadding="0"
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 523         href="lxml-module.html">Home</a>&nbsp;&nbsp;&nbsp;</th>
 524
 525   <!-- Tree link -->
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 527         href="module-tree.html">Trees</a>&nbsp;&nbsp;&nbsp;</th>
 528
 529   <!-- Index link -->
 530       <th>&nbsp;&nbsp;&nbsp;<a
 531         href="identifier-index.html">Indices</a>&nbsp;&nbsp;&nbsp;</th>
 532
 533   <!-- Help link -->
 534       <th>&nbsp;&nbsp;&nbsp;<a
 535         href="help.html">Help</a>&nbsp;&nbsp;&nbsp;</th>
 536
 537   <!-- Project homepage -->
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 546   <tr>
 547     <td align="left" class="footer">
 548     Generated by Epydoc 3.0.1
 549     on Thu Jul  9 18:29:53 2020
 550     </td>
 551     <td align="right" class="footer">
 552       <a target="mainFrame" href="http://epydoc.sourceforge.net"
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 557
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