Try-surrounded imports and catching KeyboardInterrupt
<p>I'm seeing a lot of the following pattern in a codebase I'm checking out at the moment:</p>

<pre><code>try:
    import moduleA
    import moduleB
    from custom.module.A import AX
    from custom.module.A import AY
except KeyboardInterrupt:
    sys.exit()
</code></pre>

<p>Haven't seen it before. What's this guarding against?</p>
