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<span id="main-top-level-script-environment"></span><h1>27.4. <a class="reference internal" href="#module-__main__" title="__main__: The environment where the top-level script is run."><tt class="xref py py-mod docutils literal"><span class="pre">__main__</span></tt></a> — Top-level script environment<a class="headerlink" href="#module-__main__" title="Permalink to this headline">¶</a></h1>
<p>This module represents the (otherwise anonymous) scope in which the
interpreter’s main program executes — commands read either from standard
input, from a script file, or from an interactive prompt. It is this
environment in which the idiomatic “conditional script” stanza causes a script
to run:</p>
<div class="highlight-python3"><div class="highlight"><pre><span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">"__main__"</span><span class="p">:</span>
<span class="n">main</span><span class="p">()</span>
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