Lifetime of variable after if block
<p>There is this code:</p>

<pre><code>&gt;&gt;&gt; if True:
...     a = 4
... 
&gt;&gt;&gt; print a
4
</code></pre>

<p>Why variable <strong>a</strong> is still alive after <strong>if</strong> block? Shouldn't it be destroyed when block <strong>if</strong> ends?</p>
