Which tool to use to parse programming languages in Python?

Question

Which Python tool can you recommend to parse programming languages? It should allow for a readable representation of the language grammar inside the source, and it should be abl

Answer 1

Ned Batchelder did a survey of python parsing tools, which apparently he keeps updated (last updated July 2010):

http://nedbatchelder.com/text/python-parsers.html

If I was going to need a parser today, I would either roll my own recursive descent parser, or possibly use PLY or LEPL -- depending on my needs and whether or not I was willing to introduce an external dependency. I wouldn't personally use PyParsing for anything very complicated.