Python Preprocessor
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Features
 - support c-style directives in python
 - can run post-processed code on-the-fly
 - can output to a file
 - can strip all pre-processor data from the output

Supported Directives
 - #define
 - #undef
 - #ifdef
 - #else
 - #endif
 
This version is runs in both Python 2x and Python 3x.
