title: alternative to callable(),for use in Python 3
body: <p>I looked at <a href="https://stackoverflow.com/questions/111234/what-is-a-callable-in-python">this thread</a> but some of the concepts are above my current level. In Python 2.x, the <code>callable()</code> built-in method exists; is there a simple way to check to see if something is callable or not using Python 3?</p>