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<H1><A NAME="SECTION008800000000000000000">
6.8 <tt class="module">subprocess</tt> -- Subprocess management</A>
</H1>

<P>
<A NAME="module-subprocess"></A>

<P>

<span class="versionnote">New in version 2.4.</span>

<P>
The <tt class="module">subprocess</tt> module allows you to spawn new processes,
connect to their input/output/error pipes, and obtain their return
codes.  This module intends to replace several other, older modules
and functions, such as:

<P>
<div class="verbatim"><pre>
os.system
os.spawn*
os.popen*
popen2.*
commands.*
</pre></div>

<P>
Information about how the <tt class="module">subprocess</tt> module can be used to
replace these modules and functions can be found in the following
sections.

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<LI><A href="node235.html">6.8.1 Using the subprocess Module</a>
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<LI><A href="node236.html">6.8.1.1 Convenience Functions</a>
<LI><A href="node237.html">6.8.1.2 Exceptions</a>
<LI><A href="node238.html">6.8.1.3 Security</a>
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<LI><A href="node239.html">6.8.2 Popen Objects</a>
<LI><A href="node240.html">6.8.3 Replacing Older Functions with the subprocess Module</a>
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<LI><A href="node241.html">6.8.3.1 Replacing /bin/sh shell backquote</a>
<LI><A href="node242.html">6.8.3.2 Replacing shell pipe line</a>
<LI><A href="node243.html">6.8.3.3 Replacing os.system()</a>
<LI><A href="node244.html">6.8.3.4 Replacing os.spawn*</a>
<LI><A href="node245.html">6.8.3.5 Replacing os.popen*</a>
<LI><A href="node246.html">6.8.3.6 Replacing popen2.*</a>
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<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
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