program wanted: clean up pyc files

[snippsat]

As mention is pretty easy to write this with os.walk().
os.walk() has also gotten a lot faster in Python 3.5-->.
scandir has been taken into standard library.

In practice, removing all those extra system calls makes os.walk() about 7-50 times as fast on Windows,
and about 3-10 times as fast on Linux and Mac OS X.
So we're not talking about micro-optimizations.

import os

source = '/foo'
for root,dirs,files in os.walk(source):
   for f_name in files:
       if f_name.endswith(('.pyc', '.txt')):
           f_name = os.path.join(root, f_name)
           print(f_name) # Test to see that's it okay first 
           #os.remove(f_name)