title: Why does the python threading.Thread object has 'start', but not 'stop'?
body: <p>The python module <a href="http://docs.python.org/2/library/threading.html" rel="nofollow">threading</a> has an object <code>Thread</code> to be used to run processes and functions in a different thread. This object has a <code>start</code> method, but no <code>stop</code> method. What is the reason a <code>Thread</code> cannot be stopped my calling a simple <code>stop</code> method? I can imagine cases when it is unconvenient to use the <code>join</code> method...</p>