<!DOCTYPE qhelp PUBLIC

"-//Semmle//qhelp//EN"

"qhelp.dtd">

<qhelp>

<overview>

<p> Creating a new exception object is no different from creating any other object. The exception needs to be raised to have an effect.

</p>

</overview>

<recommendation>

<p> Insert a <code>raise</code> before the exception.

</p>

</recommendation>

<example>

<p>In this example, the first function <code>do_action_forgotten_raise()</code> silently ignores any erroneous input.

Whereas, the second function <code>do_action</code> correctly raises an exception if the 'action' is not understood.

</p>

<sample src="UnusedExceptionObject.py" />

</example>

</qhelp>