BNF and Python parsers and parser generators:

• BNF and EBNF: What are they and how do they work?
• SimpleParse 2.1
• yeanpypa – YEt ANother PYthon PArser framework
• brehaut’s picoparse at master – GitHub
• Wisent: a Python parser generator
• LEPL – A Parser Library for Python 3 (and 2.6) — LEPL v3.0a1 documentation
• pyparsing – home