Python Parser Generators

The available Python systems are (roughly in order from the oldest to newest):

• Simpleparse
• Scott Cotton's PyLR.
• SPARK, by John Aycock.
• BisonGen, by Fourthought, Inc.
• Plex, by Greg Ewing. Plex is a Python module for constructing lexical analysers, or scanners. Plex scanners have almost all the capabilities of the scanners generated by GNU Flex, and are specified in a very similar way.
• PLY
• Toy Parser Generator, by Christophe Delord. Despite the name, this parser generator is no toy, and can be used for real applications.
• PyParsing, by Paul McGuire.
• PyGgy, by Tim Newsham

Martin von Loewis presented a paper at Python10, titled "Towards a Standard Parser Generator", that surveyed the available parser generators for Python.