why python not supporting : while( s = f.readline())?
<p>more example below:</p>

<pre><code> if (a = xyz() ) &gt; abc: 
</code></pre>

<p>Really want to know why, is it kinds of bad smell ?  </p>

<p>Note: I know the grammar, but I am asking why Python don't support such grammar as many other language( e.g., c , java...) do supporting</p>
