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<H2><A NAME="SECTION0074110000000000000000"> </A>
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5.4.11 PythonPath
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<P>
<b><em class="citetitle"><a
href="http://httpd.apache.org/docs-2.0/mod/directive-dict.html#Syntax"
title="Syntax:"
>Syntax:</a></em></b>
PythonPath <i>path</i>
<BR><em class="citetitle"><a
href="http://httpd.apache.org/docs-2.0/mod/directive-dict.html#Context"
title="Context:"
>Context:</a></em>
server config, virtual host, directory, htaccess
<BR><em class="citetitle"><a
href="http://httpd.apache.org/docs-2.0/mod/directive-dict.html#Override"
title="Override:"
>Override:</a></em>
not None
<BR><em class="citetitle"><a
href="http://httpd.apache.org/docs-2.0/mod/directive-dict.html#Module"
title="Module:"
>Module:</a></em>
mod_python.c
<P>
PythonPath directive sets the PythonPath. The path must be specified
in Python list notation, e.g.
<P>
<div class="verbatim"><pre>
PythonPath "['/usr/local/lib/python2.0', '/usr/local/lib/site_python', '/some/other/place']"
</pre></div>
<P>
The path specified in this directive will replace the path, not add to
it. However, because the value of the directive is evaled, to append a
directory to the path, one can specify something like
<P>
<div class="verbatim"><pre>
PythonPath "sys.path+['/mydir']"
</pre></div>
<P>
Mod_python tries to minimize the number of evals associated with the
PythonPath directive because evals are slow and can negatively impact
performance, especially when the directive is specified in an
<span class="file">.htaccess</span> file which gets parsed at every hit. Mod_python will
remember the arguments to the PythonPath directive in the un-evaled
form, and before evaling the value it will compare it to the
remembered value. If the value is the same, no action is
taken. Because of this, you should not rely on the directive as a way
to restore the pythonpath to some value if your code changes it.
<P>
<div class="note"><b class="label">Note:</b>
This directive should not be used as a security measure since the
Python path is easily manipulated from within the scripts.
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<span class="release-info">Release 3.2.10, documentation updated on July 19, 2006.</span>
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