<p>For example, if passed the following:</p>

<pre><code>a = []
</code></pre>

<p>How do I check to see if <code>a</code> is empty?</p>

```
```
if not a:
    print("List is empty")
```
```
Using the
implicit booleanness
of the empty
```
list
```
is quite Pythonic.