C and Python's compatibility aren't comparable. It's quite hard to write a C89 program that isn't C99. Basically any Python 2 program that uses 'print' won't b

C and Python's compatibility aren't comparable. It's quite hard to write a C89 program that isn't C99. Basically any Python 2 program that uses 'print' won't be valid Python 3. Even after fixing that, I always find a bunch of string related problems.