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  &lt;div class=&quot;section&quot; id=&quot;module-modulefinder&quot;&gt;
&lt;span id=&quot;modulefinder-find-modules-used-by-a-script&quot;&gt;&lt;/span&gt;&lt;h1&gt;30.6. &lt;a class=&quot;reference internal&quot; href=&quot;#module-modulefinder&quot; title=&quot;modulefinder: Find modules used by a script.&quot;&gt;&lt;tt class=&quot;xref py py-mod docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;modulefinder&lt;/span&gt;&lt;/tt&gt;&lt;/a&gt; &amp;#8212; Find modules used by a script&lt;a class=&quot;headerlink&quot; href=&quot;#module-modulefinder&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h1&gt;
&lt;p class=&quot;versionadded&quot;&gt;
&lt;span class=&quot;versionmodified&quot;&gt;New in version 2.3.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Source code:&lt;/strong&gt; &lt;a class=&quot;reference external&quot; href=&quot;http://hg.python.org/cpython/file/2.7/Lib/modulefinder.py&quot;&gt;Lib/modulefinder.py&lt;/a&gt;&lt;/p&gt;
&lt;hr class=&quot;docutils&quot; /&gt;
&lt;p&gt;This module provides a &lt;a class=&quot;reference internal&quot; href=&quot;#modulefinder.ModuleFinder&quot; title=&quot;modulefinder.ModuleFinder&quot;&gt;&lt;tt class=&quot;xref py py-class docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;ModuleFinder&lt;/span&gt;&lt;/tt&gt;&lt;/a&gt; class that can be used to determine
the set of modules imported by a script. &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;modulefinder.py&lt;/span&gt;&lt;/tt&gt; 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.&lt;/p&gt;
&lt;dl class=&quot;function&quot;&gt;
&lt;dt id=&quot;modulefinder.AddPackagePath&quot;&gt;
&lt;tt class=&quot;descclassname&quot;&gt;modulefinder.&lt;/tt&gt;&lt;tt class=&quot;descname&quot;&gt;AddPackagePath&lt;/tt&gt;&lt;big&gt;(&lt;/big&gt;&lt;em&gt;pkg_name&lt;/em&gt;, &lt;em&gt;path&lt;/em&gt;&lt;big&gt;)&lt;/big&gt;&lt;a class=&quot;headerlink&quot; href=&quot;#modulefinder.AddPackagePath&quot; title=&quot;Permalink to this definition&quot;&gt;¶&lt;/a&gt;&lt;/dt&gt;
&lt;dd&gt;&lt;p&gt;Record that the package named &lt;em&gt;pkg_name&lt;/em&gt; can be found in the specified &lt;em&gt;path&lt;/em&gt;.&lt;/p&gt;
&lt;/dd&gt;&lt;/dl&gt;

&lt;dl class=&quot;function&quot;&gt;
&lt;dt id=&quot;modulefinder.ReplacePackage&quot;&gt;
&lt;tt class=&quot;descclassname&quot;&gt;modulefinder.&lt;/tt&gt;&lt;tt class=&quot;descname&quot;&gt;ReplacePackage&lt;/tt&gt;&lt;big&gt;(&lt;/big&gt;&lt;em&gt;oldname&lt;/em&gt;, &lt;em&gt;newname&lt;/em&gt;&lt;big&gt;)&lt;/big&gt;&lt;a class=&quot;headerlink&quot; href=&quot;#modulefinder.ReplacePackage&quot; title=&quot;Permalink to this definition&quot;&gt;¶&lt;/a&gt;&lt;/dt&gt;
&lt;dd&gt;&lt;p&gt;Allows specifying that the module named &lt;em&gt;oldname&lt;/em&gt; is in fact the package named
&lt;em&gt;newname&lt;/em&gt;.  The most common usage would be  to handle how the &lt;tt class=&quot;xref py py-mod docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;_xmlplus&lt;/span&gt;&lt;/tt&gt;
package replaces the &lt;a class=&quot;reference internal&quot; href=&quot;xml.html#module-xml&quot; title=&quot;xml: Package containing XML processing modules&quot;&gt;&lt;tt class=&quot;xref py py-mod docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;xml&lt;/span&gt;&lt;/tt&gt;&lt;/a&gt; package.&lt;/p&gt;
&lt;/dd&gt;&lt;/dl&gt;

&lt;dl class=&quot;class&quot;&gt;
&lt;dt id=&quot;modulefinder.ModuleFinder&quot;&gt;
&lt;em class=&quot;property&quot;&gt;class &lt;/em&gt;&lt;tt class=&quot;descclassname&quot;&gt;modulefinder.&lt;/tt&gt;&lt;tt class=&quot;descname&quot;&gt;ModuleFinder&lt;/tt&gt;&lt;big&gt;(&lt;/big&gt;&lt;span class=&quot;optional&quot;&gt;[&lt;/span&gt;&lt;em&gt;path=None&lt;/em&gt;, &lt;em&gt;debug=0&lt;/em&gt;, &lt;em&gt;excludes=&lt;/em&gt;&lt;span class=&quot;optional&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;optional&quot;&gt;]&lt;/span&gt;, &lt;em&gt;replace_paths=&lt;/em&gt;&lt;span class=&quot;optional&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;optional&quot;&gt;]&lt;/span&gt;&lt;span class=&quot;optional&quot;&gt;]&lt;/span&gt;&lt;big&gt;)&lt;/big&gt;&lt;a class=&quot;headerlink&quot; href=&quot;#modulefinder.ModuleFinder&quot; title=&quot;Permalink to this definition&quot;&gt;¶&lt;/a&gt;&lt;/dt&gt;
&lt;dd&gt;&lt;p&gt;This class provides &lt;a class=&quot;reference internal&quot; href=&quot;#modulefinder.ModuleFinder.run_script&quot; title=&quot;modulefinder.ModuleFinder.run_script&quot;&gt;&lt;tt class=&quot;xref py py-meth docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;run_script()&lt;/span&gt;&lt;/tt&gt;&lt;/a&gt; and &lt;a class=&quot;reference internal&quot; href=&quot;#modulefinder.ModuleFinder.report&quot; title=&quot;modulefinder.ModuleFinder.report&quot;&gt;&lt;tt class=&quot;xref py py-meth docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;report()&lt;/span&gt;&lt;/tt&gt;&lt;/a&gt; methods to determine
the set of modules imported by a script. &lt;em&gt;path&lt;/em&gt; can be a list of directories to
search for modules; if not specified, &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;sys.path&lt;/span&gt;&lt;/tt&gt; is used.  &lt;em&gt;debug&lt;/em&gt; sets the
debugging level; higher values make the class print  debugging messages about
what it&amp;#8217;s doing. &lt;em&gt;excludes&lt;/em&gt; is a list of module names to exclude from the
analysis. &lt;em&gt;replace_paths&lt;/em&gt; is a list of &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;(oldpath,&lt;/span&gt; &lt;span class=&quot;pre&quot;&gt;newpath)&lt;/span&gt;&lt;/tt&gt; tuples that will
be replaced in module paths.&lt;/p&gt;
&lt;dl class=&quot;method&quot;&gt;
&lt;dt id=&quot;modulefinder.ModuleFinder.report&quot;&gt;
&lt;tt class=&quot;descname&quot;&gt;report&lt;/tt&gt;&lt;big&gt;(&lt;/big&gt;&lt;big&gt;)&lt;/big&gt;&lt;a class=&quot;headerlink&quot; href=&quot;#modulefinder.ModuleFinder.report&quot; title=&quot;Permalink to this definition&quot;&gt;¶&lt;/a&gt;&lt;/dt&gt;
&lt;dd&gt;&lt;p&gt;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.&lt;/p&gt;
&lt;/dd&gt;&lt;/dl&gt;

&lt;dl class=&quot;method&quot;&gt;
&lt;dt id=&quot;modulefinder.ModuleFinder.run_script&quot;&gt;
&lt;tt class=&quot;descname&quot;&gt;run_script&lt;/tt&gt;&lt;big&gt;(&lt;/big&gt;&lt;em&gt;pathname&lt;/em&gt;&lt;big&gt;)&lt;/big&gt;&lt;a class=&quot;headerlink&quot; href=&quot;#modulefinder.ModuleFinder.run_script&quot; title=&quot;Permalink to this definition&quot;&gt;¶&lt;/a&gt;&lt;/dt&gt;
&lt;dd&gt;&lt;p&gt;Analyze the contents of the &lt;em&gt;pathname&lt;/em&gt; file, which must contain Python
code.&lt;/p&gt;
&lt;/dd&gt;&lt;/dl&gt;

&lt;dl class=&quot;attribute&quot;&gt;
&lt;dt id=&quot;modulefinder.ModuleFinder.modules&quot;&gt;
&lt;tt class=&quot;descname&quot;&gt;modules&lt;/tt&gt;&lt;a class=&quot;headerlink&quot; href=&quot;#modulefinder.ModuleFinder.modules&quot; title=&quot;Permalink to this definition&quot;&gt;¶&lt;/a&gt;&lt;/dt&gt;
&lt;dd&gt;&lt;p&gt;A dictionary mapping module names to modules. See
&lt;a class=&quot;reference internal&quot; href=&quot;#modulefinder-example&quot;&gt;&lt;em&gt;Example usage of ModuleFinder&lt;/em&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/dd&gt;&lt;/dl&gt;

&lt;/dd&gt;&lt;/dl&gt;

&lt;div class=&quot;section&quot; id=&quot;example-usage-of-modulefinder&quot;&gt;
&lt;span id=&quot;modulefinder-example&quot;&gt;&lt;/span&gt;&lt;h2&gt;30.6.1. Example usage of &lt;a class=&quot;reference internal&quot; href=&quot;#modulefinder.ModuleFinder&quot; title=&quot;modulefinder.ModuleFinder&quot;&gt;&lt;tt class=&quot;xref py py-class docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;ModuleFinder&lt;/span&gt;&lt;/tt&gt;&lt;/a&gt;&lt;a class=&quot;headerlink&quot; href=&quot;#example-usage-of-modulefinder&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h2&gt;
&lt;p&gt;The script that is going to get analyzed later on (bacon.py):&lt;/p&gt;
&lt;div class=&quot;highlight-python&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre&gt;&lt;span class=&quot;kn&quot;&gt;import&lt;/span&gt; &lt;span class=&quot;nn&quot;&gt;re&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;nn&quot;&gt;itertools&lt;/span&gt;

&lt;span class=&quot;k&quot;&gt;try&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;:&lt;/span&gt;
    &lt;span class=&quot;kn&quot;&gt;import&lt;/span&gt; &lt;span class=&quot;nn&quot;&gt;baconhameggs&lt;/span&gt;
&lt;span class=&quot;k&quot;&gt;except&lt;/span&gt; &lt;span class=&quot;ne&quot;&gt;ImportError&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;:&lt;/span&gt;
    &lt;span class=&quot;k&quot;&gt;pass&lt;/span&gt;

&lt;span class=&quot;k&quot;&gt;try&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;:&lt;/span&gt;
    &lt;span class=&quot;kn&quot;&gt;import&lt;/span&gt; &lt;span class=&quot;nn&quot;&gt;guido.python.ham&lt;/span&gt;
&lt;span class=&quot;k&quot;&gt;except&lt;/span&gt; &lt;span class=&quot;ne&quot;&gt;ImportError&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;:&lt;/span&gt;
    &lt;span class=&quot;k&quot;&gt;pass&lt;/span&gt;
&lt;/pre&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;p&gt;The script that will output the report of bacon.py:&lt;/p&gt;
&lt;div class=&quot;highlight-python&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre&gt;&lt;span class=&quot;kn&quot;&gt;from&lt;/span&gt; &lt;span class=&quot;nn&quot;&gt;modulefinder&lt;/span&gt; &lt;span class=&quot;kn&quot;&gt;import&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;ModuleFinder&lt;/span&gt;

&lt;span class=&quot;n&quot;&gt;finder&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;ModuleFinder&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;()&lt;/span&gt;
&lt;span class=&quot;n&quot;&gt;finder&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;run_script&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&amp;#39;bacon.py&amp;#39;&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;)&lt;/span&gt;

&lt;span class=&quot;k&quot;&gt;print&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&amp;#39;Loaded modules:&amp;#39;&lt;/span&gt;
&lt;span class=&quot;k&quot;&gt;for&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;name&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;mod&lt;/span&gt; &lt;span class=&quot;ow&quot;&gt;in&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;finder&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;modules&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;iteritems&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;():&lt;/span&gt;
    &lt;span class=&quot;k&quot;&gt;print&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&amp;#39;&lt;/span&gt;&lt;span class=&quot;si&quot;&gt;%s&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;: &amp;#39;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;%&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;name&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;,&lt;/span&gt;
    &lt;span class=&quot;k&quot;&gt;print&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&amp;#39;,&amp;#39;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;join&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;mod&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;globalnames&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;keys&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;()[:&lt;/span&gt;&lt;span class=&quot;mi&quot;&gt;3&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;])&lt;/span&gt;

&lt;span class=&quot;k&quot;&gt;print&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&amp;#39;-&amp;#39;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;*&lt;/span&gt;&lt;span class=&quot;mi&quot;&gt;50&lt;/span&gt;
&lt;span class=&quot;k&quot;&gt;print&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&amp;#39;Modules not imported:&amp;#39;&lt;/span&gt;
&lt;span class=&quot;k&quot;&gt;print&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&amp;#39;&lt;/span&gt;&lt;span class=&quot;se&quot;&gt;\n&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&amp;#39;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;join&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;finder&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;badmodules&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;iterkeys&lt;/span&gt;&lt;span class=&quot;p&quot;&gt;())&lt;/span&gt;
&lt;/pre&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;p&gt;Sample output (may vary depending on the architecture):&lt;/p&gt;
&lt;div class=&quot;highlight-python&quot;&gt;&lt;pre&gt;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&lt;/pre&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;


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  &lt;h3&gt;&lt;a href=&quot;../contents.html&quot;&gt;Table Of Contents&lt;/a&gt;&lt;/h3&gt;
  &lt;ul&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#&quot;&gt;30.6. &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;modulefinder&lt;/span&gt;&lt;/tt&gt; &amp;#8212; Find modules used by a script&lt;/a&gt;&lt;ul&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#example-usage-of-modulefinder&quot;&gt;30.6.1. Example usage of &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;ModuleFinder&lt;/span&gt;&lt;/tt&gt;&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
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