Re-assigning a name to itself : <p>Notice <a href="https://github.com/python/cpython/blob/cc3fa204d357be5fafc10eb8c2a80fe0bca998f1/Lib/multiprocessing/dummy/__init__.py#L91-L92" rel="noreferrer">these lines</a> in <code>multiprocessing</code> package of standard libraries:</p>

<pre><code>dict = dict
list = list
</code></pre>

<p>What's the point of rebinding some names already available on <code>__builtins__</code> into the module scope?  What is it trying to achieve?  I searched for an explanation in the git blame, but this commit was large and there was no relevant comment.  </p>
