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<div class="section" id="module-kitchen.iterutils">
<span id="kitchen-iterutils-module"></span><h1>Kitchen.iterutils Module<a class="headerlink" href="#module-kitchen.iterutils" title="Permalink to this headline">¶</a></h1>
<p>Functions to manipulate iterables</p>
<p class="versionadded">
<span class="versionmodified">New in version Kitchen:: </span>0.2.1a1</p>
<p><em>Module author: Toshio Kuratomi <<a class="reference external" href="mailto:toshio%40fedoraproject.org">toshio<span>@</span>fedoraproject<span>.</span>org</a>></em></p>
<p><em>Module author: Luke Macken <<a class="reference external" href="mailto:lmacken%40redhat.com">lmacken<span>@</span>redhat<span>.</span>com</a>></em></p>
<dl class="function">
<dt id="kitchen.iterutils.isiterable">
<tt class="descclassname">kitchen.iterutils.</tt><tt class="descname">isiterable</tt><big>(</big><em>obj</em>, <em>include_string=False</em><big>)</big><a class="headerlink" href="#kitchen.iterutils.isiterable" title="Permalink to this definition">¶</a></dt>
<dd><p>Check whether an object is an iterable</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>obj</strong> – Object to test whether it is an iterable</li>
<li><strong>include_string</strong> – If <a class="reference external" href="http://docs.python.org/library/constants.html#True" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">True</span></tt></a> and <tt class="xref py py-attr docutils literal"><span class="pre">obj</span></tt> is a byte
<tt class="xref py py-class docutils literal"><span class="pre">str</span></tt> or <tt class="xref py py-class docutils literal"><span class="pre">unicode</span></tt> string this function will return
<a class="reference external" href="http://docs.python.org/library/constants.html#True" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">True</span></tt></a>. If set to <a class="reference external" href="http://docs.python.org/library/constants.html#False" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">False</span></tt></a>, byte <tt class="xref py py-class docutils literal"><span class="pre">str</span></tt> and
<tt class="xref py py-class docutils literal"><span class="pre">unicode</span></tt> strings will cause this function to return
<a class="reference external" href="http://docs.python.org/library/constants.html#False" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">False</span></tt></a>. Default <a class="reference external" href="http://docs.python.org/library/constants.html#False" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">False</span></tt></a>.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/library/constants.html#True" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">True</span></tt></a> if <tt class="xref py py-attr docutils literal"><span class="pre">obj</span></tt> is iterable, otherwise
<a class="reference external" href="http://docs.python.org/library/constants.html#False" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">False</span></tt></a>.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="kitchen.iterutils.iterate">
<tt class="descclassname">kitchen.iterutils.</tt><tt class="descname">iterate</tt><big>(</big><em>obj</em>, <em>include_string=False</em><big>)</big><a class="headerlink" href="#kitchen.iterutils.iterate" title="Permalink to this definition">¶</a></dt>
<dd><p>Generator that can be used to iterate over anything</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
<li><strong>obj</strong> – The object to iterate over</li>
<li><strong>include_string</strong> – if <a class="reference external" href="http://docs.python.org/library/constants.html#True" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">True</span></tt></a>, treat strings as iterables.
Otherwise treat them as a single scalar value. Default <a class="reference external" href="http://docs.python.org/library/constants.html#False" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">False</span></tt></a></li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>This function will create an iterator out of any scalar or iterable. It
is useful for making a value given to you an iterable before operating on it.
Iterables have their items returned. scalars are transformed into iterables.
A string is treated as a scalar value unless the <tt class="xref py py-attr docutils literal"><span class="pre">include_string</span></tt>
parameter is set to <a class="reference external" href="http://docs.python.org/library/constants.html#True" title="(in Python v2.7)"><tt class="xref py py-data docutils literal"><span class="pre">True</span></tt></a>. Example usage:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">(</span><span class="bp">None</span><span class="p">))</span>
<span class="go">[None]</span>
<span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">([</span><span class="bp">None</span><span class="p">]))</span>
<span class="go">[None]</span>
<span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">]))</span>
<span class="go">[1, 2, 3]</span>
<span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">(</span><span class="nb">set</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">])))</span>
<span class="go">[1, 2, 3]</span>
<span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">(</span><span class="nb">dict</span><span class="p">(</span><span class="n">a</span><span class="o">=</span><span class="s">'1'</span><span class="p">,</span> <span class="n">b</span><span class="o">=</span><span class="s">'2'</span><span class="p">)))</span>
<span class="go">['a', 'b']</span>
<span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span>
<span class="go">[1]</span>
<span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">(</span><span class="nb">iter</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">])))</span>
<span class="go">[1, 2, 3]</span>
<span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">(</span><span class="s">'abc'</span><span class="p">))</span>
<span class="go">['abc']</span>
<span class="gp">>>> </span><span class="nb">list</span><span class="p">(</span><span class="n">iterate</span><span class="p">(</span><span class="s">'abc'</span><span class="p">,</span> <span class="n">include_string</span><span class="o">=</span><span class="bp">True</span><span class="p">))</span>
<span class="go">['a', 'b', 'c']</span>
</pre></div>
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