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        <a href="lxml-module.html">Package&nbsp;lxml</a> ::
        <a href="lxml.cssselect-module.html">Module&nbsp;cssselect</a> ::
        Class&nbsp;CSSSelector
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<h1 class="epydoc">Class CSSSelector</h1><p class="nomargin-top"><span class="codelink"><a href="lxml.cssselect-pysrc.html#CSSSelector">source&nbsp;code</a></span></p>
<pre class="base-tree">
               object --+        
                        |        
<a href="lxml.etree._XPathEvaluatorBase-class.html" onclick="show_private();">etree._XPathEvaluatorBase</a> --+    
                            |    
                  <a href="lxml.etree.XPath-class.html">etree.XPath</a> --+
                                |
                               <strong class="uidshort">CSSSelector</strong>
</pre>

<hr />
<p>A CSS selector.</p>
<p>Usage:</p>
<pre class="rst-literal-block">
&gt;&gt;&gt; from lxml import etree, cssselect
&gt;&gt;&gt; select = cssselect.CSSSelector(&quot;a tag &gt; child&quot;)

&gt;&gt;&gt; root = etree.XML(&quot;&lt;a&gt;&lt;b&gt;&lt;c/&gt;&lt;tag&gt;&lt;child&gt;TEXT&lt;/child&gt;&lt;/tag&gt;&lt;/b&gt;&lt;/a&gt;&quot;)
&gt;&gt;&gt; [ el.tag for el in select(root) ]
['child']
</pre>
<p>To use CSS namespaces, you need to pass a prefix-to-namespace
mapping as <tt class="rst-docutils literal">namespaces</tt> keyword argument:</p>
<pre class="rst-literal-block">
&gt;&gt;&gt; rdfns = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'
&gt;&gt;&gt; select_ns = cssselect.CSSSelector('root &gt; rdf|Description',
...                                   namespaces={'rdf': rdfns})

&gt;&gt;&gt; rdf = etree.XML((
...     '&lt;root xmlns:rdf=&quot;%s&quot;&gt;'
...       '&lt;rdf:Description&gt;blah&lt;/rdf:Description&gt;'
...     '&lt;/root&gt;') % rdfns)
&gt;&gt;&gt; [(el.tag, el.text) for el in select_ns(rdf)]
[('{http://www.w3.org/1999/02/22-rdf-syntax-ns#}Description', 'blah')]
</pre>

<a name="section-InstanceMethods"></a>
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          <td><span class="summary-sig"><a href="lxml.cssselect.CSSSelector-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">css</span>,
        <span class="summary-sig-arg">namespaces</span>=<span class="summary-sig-default">None</span>,
        <span class="summary-sig-arg">translator</span>=<span class="summary-sig-default"><code class="variable-quote">'</code><code class="variable-string">xml</code><code class="variable-quote">'</code></span>)</span><br />
      x.__init__(...) initializes x; see help(type(x)) for signature</td>
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            <span class="codelink"><a href="lxml.cssselect-pysrc.html#CSSSelector.__init__">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a href="lxml.cssselect.CSSSelector-class.html#__repr__" class="summary-sig-name">__repr__</a>(<span class="summary-sig-arg">self</span>)</span><br />
      repr(x)</td>
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            <span class="codelink"><a href="lxml.cssselect-pysrc.html#CSSSelector.__repr__">source&nbsp;code</a></span>
            
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    <td colspan="2" class="summary">
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.etree.XPath-class.html">etree.XPath</a></code></b>:
      <code><a href="lxml.etree.XPath-class.html#__call__">__call__</a></code>,
      <code><a href="lxml.etree.XPath-class.html#__new__">__new__</a></code>
      </p>
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.etree._XPathEvaluatorBase-class.html" onclick="show_private();">etree._XPathEvaluatorBase</a></code></b>:
      <code><a href="lxml.etree._XPathEvaluatorBase-class.html#evaluate">evaluate</a></code>
      </p>
    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
      <code>__delattr__</code>,
      <code>__format__</code>,
      <code>__getattribute__</code>,
      <code>__hash__</code>,
      <code>__reduce__</code>,
      <code>__reduce_ex__</code>,
      <code>__setattr__</code>,
      <code>__sizeof__</code>,
      <code>__str__</code>,
      <code>__subclasshook__</code>
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    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.etree.XPath-class.html">etree.XPath</a></code></b>:
      <code><a href="lxml.etree.XPath-class.html#path">path</a></code>
      </p>
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="lxml.etree._XPathEvaluatorBase-class.html" onclick="show_private();">etree._XPathEvaluatorBase</a></code></b>:
      <code><a href="lxml.etree._XPathEvaluatorBase-class.html#error_log">error_log</a></code>
      </p>
    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
      <code>__class__</code>
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<a name="__init__"></a>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
        <span class="sig-arg">css</span>,
        <span class="sig-arg">namespaces</span>=<span class="sig-default">None</span>,
        <span class="sig-arg">translator</span>=<span class="sig-default"><code class="variable-quote">'</code><code class="variable-string">xml</code><code class="variable-quote">'</code></span>)</span>
    <br /><em class="fname">(Constructor)</em>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="lxml.cssselect-pysrc.html#CSSSelector.__init__">source&nbsp;code</a></span>&nbsp;
    </td>
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  x.__init__(...) initializes x; see help(type(x)) for signature
  <dl class="fields">
    <dt>Overrides:
        object.__init__
        <dd><em class="note">(inherited documentation)</em></dd>
    </dt>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__repr__</span>(<span class="sig-arg">self</span>)</span>
    <br /><em class="fname">(Representation operator)</em>
  </h3>
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  repr(x)
  <dl class="fields">
    <dt>Overrides:
        object.__repr__
        <dd><em class="note">(inherited documentation)</em></dd>
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