<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>31.5. modulefinder — Find modules used by a script — Python v2.6.5 documentation</title>
<link rel="stylesheet" href="../_static/default.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '../',
VERSION: '2.6.5',
COLLAPSE_MODINDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<link rel="search" type="application/opensearchdescription+xml"
title="Search within Python v2.6.5 documentation"
href="../_static/opensearch.xml"/>
<link rel="author" title="About these documents" href="../about.html" />
<link rel="copyright" title="Copyright" href="../copyright.html" />
<link rel="top" title="Python v2.6.5 documentation" href="../index.html" />
<link rel="up" title="31. Importing Modules" href="modules.html" />
<link rel="next" title="31.6. runpy — Locating and executing Python modules" href="runpy.html" />
<link rel="prev" title="31.4. pkgutil — Package extension utility" href="pkgutil.html" />
<link rel="shortcut icon" type="image/png" href="../_static/py.png" />
</head>
<body>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../modindex.html" title="Global Module Index"
accesskey="M">modules</a> |</li>
<li class="right" >
<a href="runpy.html" title="31.6. runpy — Locating and executing Python modules"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="pkgutil.html" title="31.4. pkgutil — Package extension utility"
accesskey="P">previous</a> |</li>
<li><img src="../_static/py.png" alt=""
style="vertical-align: middle; margin-top: -1px"/></li>
<li><a href="../index.html">Python v2.6.5 documentation</a> »</li>
<li><a href="index.html" >The Python Standard Library</a> »</li>
<li><a href="modules.html" accesskey="U">31. Importing Modules</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="section" id="module-modulefinder">
<h1>31.5. <tt class="xref docutils literal"><span class="pre">modulefinder</span></tt> — Find modules used by a script<a class="headerlink" href="#module-modulefinder" title="Permalink to this headline">¶</a></h1>
<p class="versionadded">
<span class="versionmodified">New in version 2.3.</span></p>
<p>This module provides a <a title="modulefinder.ModuleFinder" class="reference internal" href="#modulefinder.ModuleFinder"><tt class="xref docutils literal"><span class="pre">ModuleFinder</span></tt></a> class that can be used to determine
the set of modules imported by a script. <tt class="docutils literal"><span class="pre">modulefinder.py</span></tt> can also be run as
a script, giving the filename of a Python script as its argument, after which a
report of the imported modules will be printed.</p>
<dl class="function">
<dt id="modulefinder.AddPackagePath">
<tt class="descclassname">modulefinder.</tt><tt class="descname">AddPackagePath</tt><big>(</big><em>pkg_name</em>, <em>path</em><big>)</big><a class="headerlink" href="#modulefinder.AddPackagePath" title="Permalink to this definition">¶</a></dt>
<dd>Record that the package named <em>pkg_name</em> can be found in the specified <em>path</em>.</dd></dl>
<dl class="function">
<dt id="modulefinder.ReplacePackage">
<tt class="descclassname">modulefinder.</tt><tt class="descname">ReplacePackage</tt><big>(</big><em>oldname</em>, <em>newname</em><big>)</big><a class="headerlink" href="#modulefinder.ReplacePackage" title="Permalink to this definition">¶</a></dt>
<dd>Allows specifying that the module named <em>oldname</em> is in fact the package named
<em>newname</em>. The most common usage would be to handle how the <tt class="xref docutils literal"><span class="pre">_xmlplus</span></tt>
package replaces the <tt class="xref docutils literal"><span class="pre">xml</span></tt> package.</dd></dl>
<dl class="class">
<dt id="modulefinder.ModuleFinder">
<em class="property">class </em><tt class="descclassname">modulefinder.</tt><tt class="descname">ModuleFinder</tt><big>(</big><span class="optional">[</span><em>path=None</em>, <em>debug=0</em>, <em>excludes=</em><span class="optional">[</span><span class="optional">]</span>, <em>replace_paths=</em><span class="optional">[</span><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#modulefinder.ModuleFinder" title="Permalink to this definition">¶</a></dt>
<dd><p>This class provides <a title="modulefinder.ModuleFinder.run_script" class="reference internal" href="#modulefinder.ModuleFinder.run_script"><tt class="xref docutils literal"><span class="pre">run_script()</span></tt></a> and <a title="modulefinder.ModuleFinder.report" class="reference internal" href="#modulefinder.ModuleFinder.report"><tt class="xref docutils literal"><span class="pre">report()</span></tt></a> methods to determine
the set of modules imported by a script. <em>path</em> can be a list of directories to
search for modules; if not specified, <tt class="docutils literal"><span class="pre">sys.path</span></tt> is used. <em>debug</em> sets the
debugging level; higher values make the class print debugging messages about
what it’s doing. <em>excludes</em> is a list of module names to exclude from the
analysis. <em>replace_paths</em> is a list of <tt class="docutils literal"><span class="pre">(oldpath,</span> <span class="pre">newpath)</span></tt> tuples that will
be replaced in module paths.</p>
<dl class="method">
<dt id="modulefinder.ModuleFinder.report">
<tt class="descname">report</tt><big>(</big><big>)</big><a class="headerlink" href="#modulefinder.ModuleFinder.report" title="Permalink to this definition">¶</a></dt>
<dd>Print a report to standard output that lists the modules imported by the
script and their paths, as well as modules that are missing or seem to be
missing.</dd></dl>
<dl class="method">
<dt id="modulefinder.ModuleFinder.run_script">
<tt class="descname">run_script</tt><big>(</big><em>pathname</em><big>)</big><a class="headerlink" href="#modulefinder.ModuleFinder.run_script" title="Permalink to this definition">¶</a></dt>
<dd>Analyze the contents of the <em>pathname</em> file, which must contain Python
code.</dd></dl>
<dl class="attribute">
<dt id="modulefinder.ModuleFinder.modules">
<tt class="descname">modules</tt><a class="headerlink" href="#modulefinder.ModuleFinder.modules" title="Permalink to this definition">¶</a></dt>
<dd>A dictionary mapping module names to modules. See
<a class="reference internal" href="#modulefinder-example"><em>Example usage of ModuleFinder</em></a></dd></dl>
</dd></dl>
<div class="section" id="example-usage-of-modulefinder">
<span id="modulefinder-example"></span><h2>31.5.1. Example usage of <a title="modulefinder.ModuleFinder" class="reference internal" href="#modulefinder.ModuleFinder"><tt class="xref docutils literal"><span class="pre">ModuleFinder</span></tt></a><a class="headerlink" href="#example-usage-of-modulefinder" title="Permalink to this headline">¶</a></h2>
<p>The script that is going to get analyzed later on (bacon.py):</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">re</span><span class="o">,</span> <span class="nn">itertools</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">baconhameggs</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">guido.python.ham</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="k">pass</span>
</pre></div>
</div>
<p>The script that will output the report of bacon.py:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">from</span> <span class="nn">modulefinder</span> <span class="kn">import</span> <span class="n">ModuleFinder</span>
<span class="n">finder</span> <span class="o">=</span> <span class="n">ModuleFinder</span><span class="p">()</span>
<span class="n">finder</span><span class="o">.</span><span class="n">run_script</span><span class="p">(</span><span class="s">'bacon.py'</span><span class="p">)</span>
<span class="k">print</span> <span class="s">'Loaded modules:'</span>
<span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">mod</span> <span class="ow">in</span> <span class="n">finder</span><span class="o">.</span><span class="n">modules</span><span class="o">.</span><span class="n">iteritems</span><span class="p">():</span>
<span class="k">print</span> <span class="s">'</span><span class="si">%s</span><span class="s">: '</span> <span class="o">%</span> <span class="n">name</span><span class="p">,</span>
<span class="k">print</span> <span class="s">','</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">mod</span><span class="o">.</span><span class="n">globalnames</span><span class="o">.</span><span class="n">keys</span><span class="p">()[:</span><span class="mi">3</span><span class="p">])</span>
<span class="k">print</span> <span class="s">'-'</span><span class="o">*</span><span class="mi">50</span>
<span class="k">print</span> <span class="s">'Modules not imported:'</span>
<span class="k">print</span> <span class="s">'</span><span class="se">\n</span><span class="s">'</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">finder</span><span class="o">.</span><span class="n">badmodules</span><span class="o">.</span><span class="n">iterkeys</span><span class="p">())</span>
</pre></div>
</div>
<p>Sample output (may vary depending on the architecture):</p>
<div class="highlight-python"><pre>Loaded modules:
_types:
copy_reg: _inverted_registry,_slotnames,__all__
sre_compile: isstring,_sre,_optimize_unicode
_sre:
sre_constants: REPEAT_ONE,makedict,AT_END_LINE
sys:
re: __module__,finditer,_expand
itertools:
__main__: re,itertools,baconhameggs
sre_parse: __getslice__,_PATTERNENDERS,SRE_FLAG_UNICODE
array:
types: __module__,IntType,TypeType
---------------------------------------------------
Modules not imported:
guido.python.ham
baconhameggs</pre>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h3><a href="../contents.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference external" href="#">31.5. <tt class="docutils literal"><span class="pre">modulefinder</span></tt> — Find modules used by a script</a><ul>
<li><a class="reference external" href="#example-usage-of-modulefinder">31.5.1. Example usage of <tt class="docutils literal"><span class="pre">ModuleFinder</span></tt></a></li>
</ul>
</li>
</ul>
<h4>Previous topic</h4>
<p class="topless"><a href="pkgutil.html"
title="previous chapter">31.4. <tt class="docutils literal"><span class="pre">pkgutil</span></tt> — Package extension utility</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="runpy.html"
title="next chapter">31.6. <tt class="docutils literal docutils literal"><span class="pre">runpy</span></tt> — Locating and executing Python modules</a></p>
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../_sources/library/modulefinder.txt"
rel="nofollow">Show Source</a></li>
</ul>
<div id="searchbox" style="display: none">
<h3>Quick search</h3>
<form class="search" action="../search.html" method="get">
<input type="text" name="q" size="18" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
<p class="searchtip" style="font-size: 90%">
Enter search terms or a module, class or function name.
</p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="../modindex.html" title="Global Module Index"
>modules</a> |</li>
<li class="right" >
<a href="runpy.html" title="31.6. runpy — Locating and executing Python modules"
>next</a> |</li>
<li class="right" >
<a href="pkgutil.html" title="31.4. pkgutil — Package extension utility"
>previous</a> |</li>
<li><img src="../_static/py.png" alt=""
style="vertical-align: middle; margin-top: -1px"/></li>
<li><a href="../index.html">Python v2.6.5 documentation</a> »</li>
<li><a href="index.html" >The Python Standard Library</a> »</li>
<li><a href="modules.html" >31. Importing Modules</a> »</li>
</ul>
</div>
<div class="footer">
© <a href="../copyright.html">Copyright</a> 1990-2010, Python Software Foundation.
<br />
The Python Software Foundation is a non-profit corporation.
<a href="http://www.python.org/psf/donations/">Please donate.</a>
<br />
Last updated on Mar 19, 2010.
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 0.6.5.
</div>
</body>
</html>
distrib
>
Mandriva
>
current
>
i586
>
media
>
main-updates
>
by-pkgid
>
8f1462e52e1797a02c97073eed0b7f92
>
files
>
813
