Help a C++ coder see the light

[Mongryong]

Check out PyChecker: http://pychecker.sourceforge.net/

Then, write lots of unit tests.  

If you're concern about type-checking, don't be.  If a paramter does not
support a 'feature', an exception is thrown and you can figure out where
the fault is.  Remember, Python is all about polymorhism and re-use.

Oh, there is a way to do run-time type-checking in Python but its
needless overhead and very bad.  It's one of the many ways in Python
that you'll end up shooting yourself in the foot or blowing off your
leg.