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<div class="section" id="write-adjlist">
<h1>write_adjlist<a class="headerlink" href="#write-adjlist" title="Permalink to this headline">¶</a></h1>
<dl class="function">
<dt id="networkx.readwrite.adjlist.write_adjlist">
<tt class="descname">write_adjlist</tt><big>(</big><em>G</em>, <em>path</em>, <em>comments='#'</em>, <em>delimiter=' '</em>, <em>encoding='utf-8'</em><big>)</big><a class="reference internal" href="../../_modules/networkx/readwrite/adjlist.html#write_adjlist"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#networkx.readwrite.adjlist.write_adjlist" title="Permalink to this definition">¶</a></dt>
<dd><p>Write graph G in single-line adjacency-list format to path.</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"><p class="first"><strong>G</strong> : NetworkX graph</p>
<p><strong>path</strong> : string or file</p>
<blockquote>
<div><p>Filename or file handle for data output.
Filenames ending in .gz or .bz2 will be compressed.</p>
</div></blockquote>
<p><strong>comments</strong> : string, optional</p>
<blockquote>
<div><p>Marker for comment lines</p>
</div></blockquote>
<p><strong>delimiter</strong> : string, optional</p>
<blockquote>
<div><p>Separator for node labels</p>
</div></blockquote>
<p><strong>encoding</strong> : string, optional</p>
<blockquote class="last">
<div><p>Text encoding.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<div class="admonition-see-also admonition seealso">
<p class="first admonition-title">See also</p>
<p class="last"><a class="reference internal" href="networkx.readwrite.adjlist.read_adjlist.html#networkx.readwrite.adjlist.read_adjlist" title="networkx.readwrite.adjlist.read_adjlist"><tt class="xref py py-obj docutils literal"><span class="pre">read_adjlist</span></tt></a>, <a class="reference internal" href="networkx.readwrite.adjlist.generate_adjlist.html#networkx.readwrite.adjlist.generate_adjlist" title="networkx.readwrite.adjlist.generate_adjlist"><tt class="xref py py-obj docutils literal"><span class="pre">generate_adjlist</span></tt></a></p>
</div>
<p class="rubric">Notes</p>
<p>This format does not store graph, node, or edge data.</p>
<p class="rubric">Examples</p>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">G</span><span class="o">=</span><span class="n">nx</span><span class="o">.</span><span class="n">path_graph</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">nx</span><span class="o">.</span><span class="n">write_adjlist</span><span class="p">(</span><span class="n">G</span><span class="p">,</span><span class="s">"test.adjlist"</span><span class="p">)</span>
</pre></div>
</div>
<p>The path can be a filehandle or a string with the name of the file. If a
filehandle is provided, it has to be opened in ‘wb’ mode.</p>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">fh</span><span class="o">=</span><span class="nb">open</span><span class="p">(</span><span class="s">"test.adjlist"</span><span class="p">,</span><span class="s">'wb'</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">nx</span><span class="o">.</span><span class="n">write_adjlist</span><span class="p">(</span><span class="n">G</span><span class="p">,</span> <span class="n">fh</span><span class="p">)</span>
</pre></div>
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