pyparsing
- A general parsing module for Python. Grammars are implemented directly in the client code using parsing objects, instead of externally, as with lex/yacc-type tools. Includes simple examples for parsing SQL, CORBA IDL, and 4-function math. [Open source, MI
- http://pyparsing.wikispaces.com

mxTextTools
- Fast Text Manipulation Tools for Python. [Open Source]
- http://www.egenix.com/files/python/mxTextTools.html

Yapps (Yet Another Python Parser System)
- An easy to use parser system for lightweight parsing needs. It's designed to be easy to use, but not designed to be fast. From a grammar file it generates readable Python code that looks somewhat like what you might have written by hand. [Open Source, MIT
- http://theory.stanford.edu/~amitp/Yapps/

SPARK
- Scanning, Parsing, and Rewriting Kit. [Open Source, BSD-like]
- http://pages.cpsc.ucalgary.ca/~aycock/spark/

ServPDF
- A web based Microsoft Office to PDF Converter Server which is based on SPYCE (Python Server Pages) and uses COM Automation to convert Office documents to Postscript and PDF. [Freeware]
- http://www.goermezer.de/content/view/20/205/

EmPy
- A templating system for Python. [Open Source, GPL]
- http://www.alcyone.com/software/empy/

SimpleParse
- A parser generator for mxTextTools. [Open Source, BSD-like]
- http://simpleparse.sourceforge.net/

PyStemmer
- Provides stemmer functionality in Python for English, German, Norwegian, Italian, Dutch, Portuguese, French, Swedish. [Open Source, BSD-like]
- http://sourceforge.net/projects/pystemmer/

SnoPy
- Python extension for SNOBOL Pattern Matching using the SNOBOL code from the GNAT Ada compiler. [Open Source, GPL]
- http://snopy.sourceforge.net/

pyMifluz
- Python bindings for mifluz (C++ library to build and query a full text inverted index). [Open Source, GPL]
- http://sourceforge.net/projects/pymifluz/

CSV module for Python
- Module for fast reading of CVS files. [Open Source, BSD-like]
- http://www.object-craft.com.au/projects/csv/

CSV importer/exporter
- Has heuristics for determining file format and an optional wxPython dialog. [Open Source, Python license]
- http://sourceforge.net/projects/python-dsv/