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  • Committer: Bazaar Package Importer
  • Author(s): Arnaud Fontaine
  • Date: 2007-04-16 17:49:03 UTC
  • mfrom: (1.1.2 upstream)
  • Revision ID: james.westby@ubuntu.com-20070416174903-x2p3n9g890v18d0m
Tags: 0.4-1
* New upstream release.
* Remove useless python-markup transition package.
* Add Provides against python-markup.
* Add doc-base.
* Add depends against python-xml.
* Add suggests to python-setuptools.

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  <title>genshi.core.Attrs</title>
 
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        <a href="genshi-module.html">Package&nbsp;genshi</a> ::
 
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        <a href="genshi.core-module.html">Module&nbsp;core</a> ::
 
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        Class&nbsp;Attrs
 
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      </span>
 
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    <td>
 
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      <table cellpadding="0" cellspacing="0">
 
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        <!-- hide/show private -->
 
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</table>
 
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<!-- ==================== CLASS DESCRIPTION ==================== -->
 
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<h1 class="epydoc">Class Attrs</h1><br /><br />
 
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<pre class="base-tree">
 
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object --+    
 
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         |    
 
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     tuple --+
 
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             |
 
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            <strong class="uidshort">Attrs</strong>
 
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</pre>
 
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<hr />
 
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<p>Immutable sequence type that stores the attributes of an element.</p>
 
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<p>Ordering of the attributes is preserved, while access by name is also
 
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supported.</p>
 
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<pre class="py-doctest">
 
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<span class="py-prompt">&gt;&gt;&gt; </span>attrs = Attrs([(<span class="py-string">'href'</span>, <span class="py-string">'#'</span>), (<span class="py-string">'title'</span>, <span class="py-string">'Foo'</span>)])
 
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<span class="py-prompt">&gt;&gt;&gt; </span>attrs
 
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<span class="py-output">Attrs([('href', '#'), ('title', 'Foo')])</span></pre>
 
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<pre class="py-doctest">
 
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<span class="py-prompt">&gt;&gt;&gt; </span><span class="py-string">'href'</span> <span class="py-keyword">in</span> attrs
 
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<span class="py-output">True</span>
 
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<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span><span class="py-string">'tabindex'</span> <span class="py-keyword">in</span> attrs
 
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<span class="py-output">False</span>
 
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<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span>attrs.get(<span class="py-string">'title'</span>)
 
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<span class="py-output">'Foo'</span></pre>
 
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<p>Instances may not be manipulated directly. Instead, the operators <tt class="rst-docutils literal"><span class="pre">|</span></tt> and
 
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<tt class="rst-docutils literal"><span class="pre">-</span></tt> can be used to produce new instances that have specific attributes
 
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added, replaced or removed.</p>
 
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<p>To remove an attribute, use the <tt class="rst-docutils literal"><span class="pre">-</span></tt> operator. The right hand side can be
 
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either a string or a set/sequence of strings, identifying the name(s) of
 
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the attribute(s) to remove:</p>
 
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<pre class="py-doctest">
 
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<span class="py-prompt">&gt;&gt;&gt; </span>attrs - <span class="py-string">'title'</span>
 
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<span class="py-output">Attrs([('href', '#')])</span>
 
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<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span>attrs - (<span class="py-string">'title'</span>, <span class="py-string">'href'</span>)
 
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<span class="py-output">Attrs()</span></pre>
 
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<p>The original instance is not modified, but the operator can of course be
 
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used with an assignment:</p>
 
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<pre class="py-doctest">
 
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<span class="py-prompt">&gt;&gt;&gt; </span>attrs
 
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<span class="py-output">Attrs([('href', '#'), ('title', 'Foo')])</span>
 
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<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span>attrs -= <span class="py-string">'title'</span>
 
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<span class="py-prompt">&gt;&gt;&gt; </span>attrs
 
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<span class="py-output">Attrs([('href', '#')])</span></pre>
 
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<p>To add a new attribute, use the <tt class="rst-docutils literal"><span class="pre">|</span></tt> operator, where the right hand value
 
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is a sequence of <tt class="rst-docutils literal"><span class="pre">(name,</span> <span class="pre">value)</span></tt> tuples (which includes <a href="genshi.core.Attrs-class.html" class="link">Attrs</a>
 
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instances):</p>
 
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<pre class="py-doctest">
 
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<span class="py-prompt">&gt;&gt;&gt; </span>attrs | [(<span class="py-string">'title'</span>, <span class="py-string">'Bar'</span>)]
 
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<span class="py-output">Attrs([('href', '#'), ('title', 'Bar')])</span></pre>
 
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<p>If the attributes already contain an attribute with a given name, the value
 
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of that attribute is replaced:</p>
 
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<pre class="py-doctest">
 
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<span class="py-prompt">&gt;&gt;&gt; </span>attrs | [(<span class="py-string">'href'</span>, <span class="py-string">'http://example.org/'</span>)]
 
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<span class="py-output">Attrs([('href', 'http://example.org/')])</span></pre><br /><br />
 
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<!-- ==================== INSTANCE METHODS ==================== -->
 
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<a name="section-InstanceMethods"></a>
 
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<table class="summary" border="1" cellpadding="3"
 
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<tr bgcolor="#70b0f0" class="table-header">
 
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  <td align="left" colspan="2" class="table-header">
 
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    <span class="table-header">Instance Methods</span></td>
 
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</tr>
 
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<tr>
 
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    <td width="15%" align="right" valign="top" class="summary">
 
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      <span class="summary-type">&nbsp;</span>
 
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    </td><td class="summary">
 
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      <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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        <tr>
 
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          <td><span class="summary-sig"><a href="genshi.core.Attrs-class.html#__contains__" class="summary-sig-name">__contains__</a>(<span class="summary-sig-arg">self</span>,
 
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        <span class="summary-sig-arg">name</span>)</span><br />
 
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      Return whether the list includes an attribute with the specified
 
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name.</td>
 
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          <td align="right" valign="top">
 
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          </td>
 
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        </tr>
 
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      </table>
 
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    </td>
 
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  </tr>
 
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<tr>
 
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    <td width="15%" align="right" valign="top" class="summary">
 
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      <span class="summary-type">&nbsp;</span>
 
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    </td><td class="summary">
 
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      <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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        <tr>
 
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          <td><span class="summary-sig"><a href="genshi.core.Attrs-class.html#__getslice__" class="summary-sig-name">__getslice__</a>(<span class="summary-sig-arg">self</span>,
 
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        <span class="summary-sig-arg">i</span>,
 
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        <span class="summary-sig-arg">j</span>)</span><br />
 
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      x[i:j]</td>
 
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          <td align="right" valign="top">
 
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          </td>
 
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        </tr>
 
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      </table>
 
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    </td>
 
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  </tr>
 
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<tr>
 
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    <td width="15%" align="right" valign="top" class="summary">
 
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      <span class="summary-type">&nbsp;</span>
 
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    </td><td class="summary">
 
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      <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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        <tr>
 
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          <td><span class="summary-sig"><a name="__or__"></a><span class="summary-sig-name">__or__</span>(<span class="summary-sig-arg">self</span>,
 
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        <span class="summary-sig-arg">attrs</span>)</span><br />
 
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      Return a new instance that contains the attributes in <code class="link">attrs</code> in
 
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addition to any already existing attributes.</td>
 
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          <td align="right" valign="top">
 
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          </td>
 
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        </tr>
 
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      </table>
 
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    </td>
 
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  </tr>
 
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<tr>
 
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    <td width="15%" align="right" valign="top" class="summary">
 
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      <span class="summary-type">&nbsp;</span>
 
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    </td><td class="summary">
 
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      <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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        <tr>
 
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          <td><span class="summary-sig"><a href="genshi.core.Attrs-class.html#__repr__" class="summary-sig-name">__repr__</a>(<span class="summary-sig-arg">self</span>)</span><br />
 
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      repr(x)</td>
 
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          <td align="right" valign="top">
 
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          </td>
 
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        </tr>
 
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      </table>
 
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    </td>
 
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  </tr>
 
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<tr>
 
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    <td width="15%" align="right" valign="top" class="summary">
 
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      <span class="summary-type">&nbsp;</span>
 
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    </td><td class="summary">
 
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      <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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        <tr>
 
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          <td><span class="summary-sig"><a name="__sub__"></a><span class="summary-sig-name">__sub__</span>(<span class="summary-sig-arg">self</span>,
 
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        <span class="summary-sig-arg">names</span>)</span><br />
 
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      Return a new instance with all attributes with a name in <code class="link">names</code> are
 
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removed.</td>
 
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          <td align="right" valign="top">
 
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          </td>
 
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        </tr>
 
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      </table>
 
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    </td>
 
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  </tr>
 
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<tr>
 
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    <td width="15%" align="right" valign="top" class="summary">
 
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      <span class="summary-type">&nbsp;</span>
 
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    </td><td class="summary">
 
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      <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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        <tr>
 
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          <td><span class="summary-sig"><a href="genshi.core.Attrs-class.html#get" class="summary-sig-name">get</a>(<span class="summary-sig-arg">self</span>,
 
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        <span class="summary-sig-arg">name</span>,
 
222
        <span class="summary-sig-arg">default</span>=<span class="summary-sig-default">None</span>)</span><br />
 
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      Return the value of the attribute with the specified name, or the
 
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value of the <code class="link">default</code> parameter if no such attribute is found.</td>
 
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          <td align="right" valign="top">
 
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          </td>
 
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        </tr>
 
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      </table>
 
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    </td>
 
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  </tr>
 
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<tr>
 
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    <td width="15%" align="right" valign="top" class="summary">
 
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      <span class="summary-type">&nbsp;</span>
 
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    </td><td class="summary">
 
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      <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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        <tr>
 
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          <td><span class="summary-sig"><a href="genshi.core.Attrs-class.html#totuple" class="summary-sig-name">totuple</a>(<span class="summary-sig-arg">self</span>)</span><br />
 
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      Return the attributes as a markup event.</td>
 
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          <td align="right" valign="top">
 
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          </td>
 
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        </tr>
 
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      </table>
 
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    </td>
 
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  </tr>
 
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  <tr>
 
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    <td colspan="2" class="summary">
 
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    <p class="indent-wrapped-lines"><b>Inherited from <code>tuple</code></b>:
 
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      <code>__add__</code>,
 
255
      <code>__eq__</code>,
 
256
      <code>__ge__</code>,
 
257
      <code>__getattribute__</code>,
 
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      <code>__getitem__</code>,
 
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      <code>__getnewargs__</code>,
 
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      <code>__gt__</code>,
 
261
      <code>__hash__</code>,
 
262
      <code>__iter__</code>,
 
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      <code>__le__</code>,
 
264
      <code>__len__</code>,
 
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      <code>__lt__</code>,
 
266
      <code>__mul__</code>,
 
267
      <code>__ne__</code>,
 
268
      <code>__new__</code>,
 
269
      <code>__rmul__</code>
 
270
      </p>
 
271
    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
 
272
      <code>__delattr__</code>,
 
273
      <code>__init__</code>,
 
274
      <code>__reduce__</code>,
 
275
      <code>__reduce_ex__</code>,
 
276
      <code>__setattr__</code>,
 
277
      <code>__str__</code>
 
278
      </p>
 
279
    </td>
 
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  </tr>
 
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</table>
 
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<!-- ==================== PROPERTIES ==================== -->
 
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<a name="section-Properties"></a>
 
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<table class="summary" border="1" cellpadding="3"
 
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<tr bgcolor="#70b0f0" class="table-header">
 
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  <td align="left" colspan="2" class="table-header">
 
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    <span class="table-header">Properties</span></td>
 
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</tr>
 
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  <tr>
 
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    <td colspan="2" class="summary">
 
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    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
 
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      <code>__class__</code>
 
294
      </p>
 
295
    </td>
 
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  </tr>
 
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</table>
 
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<!-- ==================== METHOD DETAILS ==================== -->
 
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<a name="section-MethodDetails"></a>
 
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<table class="details" border="1" cellpadding="3"
 
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       cellspacing="0" width="100%" bgcolor="white">
 
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<tr bgcolor="#70b0f0" class="table-header">
 
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  <td align="left" colspan="2" class="table-header">
 
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    <span class="table-header">Method Details</span></td>
 
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</tr>
 
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</table>
 
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<a name="__contains__"></a>
 
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<div>
 
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<table class="details" border="1" cellpadding="3"
 
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       cellspacing="0" width="100%" bgcolor="white">
 
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<tr><td>
 
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  <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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  <tr valign="top"><td>
 
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__contains__</span>(<span class="sig-arg">self</span>,
 
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        <span class="sig-arg">name</span>)</span>
 
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    <br /><em class="fname">(In operator)</em>
 
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  </h3>
 
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  </td><td align="right" valign="top"
 
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    >&nbsp;
 
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    </td>
 
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  </table>
 
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  Return whether the list includes an attribute with the specified
 
324
name.
 
325
  <dl class="fields">
 
326
    <dt>Overrides:
 
327
      tuple.__contains__
 
328
    </dt>
 
329
  </dl>
 
330
</td></tr></table>
 
331
</div>
 
332
<a name="__getslice__"></a>
 
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<div>
 
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<table class="details" border="1" cellpadding="3"
 
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       cellspacing="0" width="100%" bgcolor="white">
 
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<tr><td>
 
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  <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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  <tr valign="top"><td>
 
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__getslice__</span>(<span class="sig-arg">self</span>,
 
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        <span class="sig-arg">i</span>,
 
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        <span class="sig-arg">j</span>)</span>
 
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    <br /><em class="fname">(Slicling operator)</em>
 
343
  </h3>
 
344
  </td><td align="right" valign="top"
 
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    >&nbsp;
 
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    </td>
 
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  </table>
 
348
  
 
349
  <p>x[i:j]</p>
 
350
<p>Use of negative indices is not supported.</p>
 
351
  <dl class="fields">
 
352
    <dt>Overrides:
 
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      tuple.__getslice__
 
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        <dd><em class="note">(inherited documentation)</em></dd>
 
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    </dt>
 
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  </dl>
 
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</td></tr></table>
 
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</div>
 
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<a name="__repr__"></a>
 
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<div>
 
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<table class="details" border="1" cellpadding="3"
 
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       cellspacing="0" width="100%" bgcolor="white">
 
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<tr><td>
 
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  <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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  <tr valign="top"><td>
 
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__repr__</span>(<span class="sig-arg">self</span>)</span>
 
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    <br /><em class="fname">(Representation operator)</em>
 
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  </h3>
 
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  </td><td align="right" valign="top"
 
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    >&nbsp;
 
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    </td>
 
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  </table>
 
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  repr(x)
 
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  <dl class="fields">
 
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    <dt>Overrides:
 
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      tuple.__repr__
 
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        <dd><em class="note">(inherited documentation)</em></dd>
 
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    </dt>
 
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  </dl>
 
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</td></tr></table>
 
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</div>
 
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<a name="get"></a>
 
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<div>
 
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<table class="details" border="1" cellpadding="3"
 
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       cellspacing="0" width="100%" bgcolor="white">
 
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<tr><td>
 
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  <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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  <tr valign="top"><td>
 
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">get</span>(<span class="sig-arg">self</span>,
 
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        <span class="sig-arg">name</span>,
 
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        <span class="sig-arg">default</span>=<span class="sig-default">None</span>)</span>
 
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  </h3>
 
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  </td><td align="right" valign="top"
 
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    >&nbsp;
 
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    </td>
 
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  </table>
 
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  Return the value of the attribute with the specified name, or the
 
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value of the <code class="link">default</code> parameter if no such attribute is found.
 
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  <dl class="fields">
 
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    <dt>Parameters:</dt>
 
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    <dd><ul class="nomargin-top">
 
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        <li><strong class="pname"><code>name</code></strong> - the name of the attribute</li>
 
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        <li><strong class="pname"><code>default</code></strong> - the value to return when the attribute does not exist</li>
 
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    </ul></dd>
 
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    <dt>Returns:</dt>
 
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        <dd>the attribute value, or the <code class="link">default</code> value if that attribute
 
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does not exist</dd>
 
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  </dl>
 
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</td></tr></table>
 
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</div>
 
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<a name="totuple"></a>
 
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<div>
 
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<table class="details" border="1" cellpadding="3"
 
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       cellspacing="0" width="100%" bgcolor="white">
 
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<tr><td>
 
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  <table width="100%" cellpadding="0" cellspacing="0" border="0">
 
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  <tr valign="top"><td>
 
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">totuple</span>(<span class="sig-arg">self</span>)</span>
 
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  </h3>
 
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  </td><td align="right" valign="top"
 
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    >&nbsp;
 
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    </td>
 
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  </table>
 
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  <p>Return the attributes as a markup event.</p>
 
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<p>The returned event is a <a href="genshi.core-module.html#TEXT" class="link">TEXT</a> event, the data is the value of all
 
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attributes joined together.</p>
 
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<pre class="py-doctest">
 
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<span class="py-prompt">&gt;&gt;&gt; </span>Attrs([(<span class="py-string">'href'</span>, <span class="py-string">'#'</span>), (<span class="py-string">'title'</span>, <span class="py-string">'Foo'</span>)]).totuple()
 
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<span class="py-output">('TEXT', u'#Foo', (None, -1, -1))</span></pre>
 
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  <dl class="fields">
 
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