Internal Program Version: pyparsing  3.2.3

The pyparsing module is an alternative approach to creating and
executing simple grammars, vs. the traditional lex/yacc approach,
or the use of regular expressions. With pyparsing, you don't need
to learn a new syntax for defining grammars or matching expressions.
The parsing module provides a library of classes that you use to
construct the grammar directly in Python.

http://sourceforge.net/projects/pyparsing