rlink" href="#parse-arguments" title="Permalink to this headline">¶</a></h4>
<p>Python provides an arguments parser, <code class="docutils literal notranslate"><span class="pre">argparse</span></code>, use it.  Let a user know how this thing
is supposed to work.  Even if it’s supposed to just start up and run, give it help.
A smart user will call your module with <code class="docutils literal notranslate"><span class="pre">--help</span></code> first to see what it does.
<strong>Encourage that behavior.</