C# like extension functions in python?
<p>End up writing lots of:</p>

<pre><code>lines = [l.strip() for l in lines]
</code></pre>

<p>Is there a readable Pythonista way to do it like: <code>lines.stripped()</code> that returns lines stripped? (in C# you could add an 'extension method' to a list of strings).</p>
