Clearing Python lists
<p>Is there any reason to do anything more complicated than one of these two lines when you want to clear a list in Python:</p>

<pre><code>old_list = []
old_list = list()
</code></pre>

<p>The reason I ask is that I just saw this in some running code:</p>

<pre><code>del old_list[ 0:len(old_list) ]
</code></pre>
