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  192.   <section id="module-modulefinder">

  193. <span id="modulefinder-find-modules-used-by-a-script"></span><h1><a class="reference internal" href="#module-modulefinder" title="modulefinder: Find modules used by a script."><code class="xref py py-mod docutils literal notranslate"><span class="pre">modulefinder</span></code></a> — Find modules used by a script<a class="headerlink" href="#module-modulefinder" title="Link to this heading">¶</a></h1>

  194. <p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.12/Lib/modulefinder.py">Lib/modulefinder.py</a></p>

  195. <hr class="docutils" />

  196. <p>This module provides a <a class="reference internal" href="#modulefinder.ModuleFinder" title="modulefinder.ModuleFinder"><code class="xref py py-class docutils literal notranslate"><span class="pre">ModuleFinder</span></code></a> class that can be used to determine

  197. the set of modules imported by a script. <code class="docutils literal notranslate"><span class="pre">modulefinder.py</span></code> can also be run as

  198. a script, giving the filename of a Python script as its argument, after which a

  199. report of the imported modules will be printed.</p>

  200. <dl class="py function">

  201. <dt class="sig sig-object py" id="modulefinder.AddPackagePath">

  202. <span class="sig-prename descclassname"><span class="pre">modulefinder.</span></span><span class="sig-name descname"><span class="pre">AddPackagePath</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pkg_name</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#modulefinder.AddPackagePath" title="Link to this definition">¶</a></dt>

  203. <dd><p>Record that the package named <em>pkg_name</em> can be found in the specified <em>path</em>.</p>

  204. </dd></dl>

  205. 

  206. <dl class="py function">

  207. <dt class="sig sig-object py" id="modulefinder.ReplacePackage">

  208. <span class="sig-prename descclassname"><span class="pre">modulefinder.</span></span><span class="sig-name descname"><span class="pre">ReplacePackage</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">oldname</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">newname</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#modulefinder.ReplacePackage" title="Link to this definition">¶</a></dt>

  209. <dd><p>Allows specifying that the module named <em>oldname</em> is in fact the package named

  210. <em>newname</em>.</p>

  211. </dd></dl>

  212. 

  213. <dl class="py class">

  214. <dt class="sig sig-object py" id="modulefinder.ModuleFinder">

  215. <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">modulefinder.</span></span><span class="sig-name descname"><span class="pre">ModuleFinder</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">debug</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">excludes</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">[]</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">replace_paths</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">[]</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#modulefinder.ModuleFinder" title="Link to this definition">¶</a></dt>

  216. <dd><p>This class provides <a class="reference internal" href="#modulefinder.ModuleFinder.run_script" title="modulefinder.ModuleFinder.run_script"><code class="xref py py-meth docutils literal notranslate"><span class="pre">run_script()</span></code></a> and <a class="reference internal" href="#modulefinder.ModuleFinder.report" title="modulefinder.ModuleFinder.report"><code class="xref py py-meth docutils literal notranslate"><span class="pre">report()</span></code></a> methods to determine

  217. the set of modules imported by a script. <em>path</em> can be a list of directories to

  218. search for modules; if not specified, <code class="docutils literal notranslate"><span class="pre">sys.path</span></code> is used.  <em>debug</em> sets the

  219. debugging level; higher values make the class print debugging messages about

  220. what it’s doing. <em>excludes</em> is a list of module names to exclude from the

  221. analysis. <em>replace_paths</em> is a list of <code class="docutils literal notranslate"><span class="pre">(oldpath,</span> <span class="pre">newpath)</span></code> tuples that will

  222. be replaced in module paths.</p>

  223. <dl class="py method">

  224. <dt class="sig sig-object py" id="modulefinder.ModuleFinder.report">

  225. <span class="sig-name descname"><span class="pre">report</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#modulefinder.ModuleFinder.report" title="Link to this definition">¶</a></dt>

  226. <dd><p>Print a report to standard output that lists the modules imported by the

  227. script and their paths, as well as modules that are missing or seem to be

  228. missing.</p>

  229. </dd></dl>

  230. 

  231. <dl class="py method">

  232. <dt class="sig sig-object py" id="modulefinder.ModuleFinder.run_script">

  233. <span class="sig-name descname"><span class="pre">run_script</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pathname</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#modulefinder.ModuleFinder.run_script" title="Link to this definition">¶</a></dt>

  234. <dd><p>Analyze the contents of the <em>pathname</em> file, which must contain Python

  235. code.</p>

  236. </dd></dl>

  237. 

  238. <dl class="py attribute">

  239. <dt class="sig sig-object py" id="modulefinder.ModuleFinder.modules">

  240. <span class="sig-name descname"><span class="pre">modules</span></span><a class="headerlink" href="#modulefinder.ModuleFinder.modules" title="Link to this definition">¶</a></dt>

  241. <dd><p>A dictionary mapping module names to modules. See

  242. <a class="reference internal" href="#modulefinder-example"><span class="std std-ref">Example usage of ModuleFinder</span></a>.</p>

  243. </dd></dl>

  244. 

  245. </dd></dl>

  246. 

  247. <section id="example-usage-of-modulefinder">

  248. <span id="modulefinder-example"></span><h2>Example usage of <a class="reference internal" href="#modulefinder.ModuleFinder" title="modulefinder.ModuleFinder"><code class="xref py py-class docutils literal notranslate"><span class="pre">ModuleFinder</span></code></a><a class="headerlink" href="#example-usage-of-modulefinder" title="Link to this heading">¶</a></h2>

  249. <p>The script that is going to get analyzed later on (bacon.py):</p>

  250. <div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">re</span><span class="o">,</span> <span class="nn">itertools</span>

  251. 

  252. <span class="k">try</span><span class="p">:</span>

  253.     <span class="kn">import</span> <span class="nn">baconhameggs</span>

  254. <span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>

  255.     <span class="k">pass</span>

  256. 

  257. <span class="k">try</span><span class="p">:</span>

  258.     <span class="kn">import</span> <span class="nn">guido.python.ham</span>

  259. <span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>

  260.     <span class="k">pass</span>

  261. </pre></div>

  262. </div>

  263. <p>The script that will output the report of bacon.py:</p>

  264. <div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">modulefinder</span> <span class="kn">import</span> <span class="n">ModuleFinder</span>

  265. 

  266. <span class="n">finder</span> <span class="o">=</span> <span class="n">ModuleFinder</span><span class="p">()</span>

  267. <span class="n">finder</span><span class="o">.</span><span class="n">run_script</span><span class="p">(</span><span class="s1">&#39;bacon.py&#39;</span><span class="p">)</span>

  268. 

  269. <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;Loaded modules:&#39;</span><span class="p">)</span>

  270. <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">items</span><span class="p">():</span>

  271.     <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;</span><span class="si">%s</span><span class="s1">: &#39;</span> <span class="o">%</span> <span class="n">name</span><span class="p">,</span> <span class="n">end</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="p">)</span>

  272.     <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;,&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="nb">list</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>

  273. 

  274. <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="o">*</span><span class="mi">50</span><span class="p">)</span>

  275. <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;Modules not imported:&#39;</span><span class="p">)</span>

  276. <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</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">keys</span><span class="p">()))</span>

  277. </pre></div>

  278. </div>

  279. <p>Sample output (may vary depending on the architecture):</p>

  280. <div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="n">Loaded</span> <span class="n">modules</span><span class="p">:</span>

  281. <span class="n">_types</span><span class="p">:</span>

  282. <span class="n">copyreg</span><span class="p">:</span>  <span class="n">_inverted_registry</span><span class="p">,</span><span class="n">_slotnames</span><span class="p">,</span><span class="n">__all__</span>

  283. <span class="n">re</span><span class="o">.</span><span class="n">_compiler</span><span class="p">:</span>  <span class="n">isstring</span><span class="p">,</span><span class="n">_sre</span><span class="p">,</span><span class="n">_optimize_unicode</span>

  284. <span class="n">_sre</span><span class="p">:</span>

  285. <span class="n">re</span><span class="o">.</span><span class="n">_constants</span><span class="p">:</span>  <span class="n">REPEAT_ONE</span><span class="p">,</span><span class="n">makedict</span><span class="p">,</span><span class="n">AT_END_LINE</span>

  286. <span class="n">sys</span><span class="p">:</span>

  287. <span class="n">re</span><span class="p">:</span>  <span class="vm">__module__</span><span class="p">,</span><span class="n">finditer</span><span class="p">,</span><span class="n">_expand</span>

  288. <span class="n">itertools</span><span class="p">:</span>

  289. <span class="n">__main__</span><span class="p">:</span>  <span class="n">re</span><span class="p">,</span><span class="n">itertools</span><span class="p">,</span><span class="n">baconhameggs</span>

  290. <span class="n">re</span><span class="o">.</span><span class="n">_parser</span><span class="p">:</span>  <span class="n">_PATTERNENDERS</span><span class="p">,</span><span class="n">SRE_FLAG_UNICODE</span>

  291. <span class="n">array</span><span class="p">:</span>

  292. <span class="n">types</span><span class="p">:</span>  <span class="vm">__module__</span><span class="p">,</span><span class="n">IntType</span><span class="p">,</span><span class="n">TypeType</span>

  293. <span class="o">---------------------------------------------------</span>

  294. <span class="n">Modules</span> <span class="ow">not</span> <span class="n">imported</span><span class="p">:</span>

  295. <span class="n">guido</span><span class="o">.</span><span class="n">python</span><span class="o">.</span><span class="n">ham</span>

  296. <span class="n">baconhameggs</span>

  297. </pre></div>

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