The following software may be useful to you. It is certainly not
documented or tested as well as it should be, but that's academic software
for you. All code is released under the GPLv2 license. Almost all code
is in Python.
parsedyff: Visualize the differences between two treebank parse trees via graphviz
Parsing: Python module with parsing related functions (running/training the Charniak parser, tree reading, evaluation)
PyInputTree: Python interface to the InputTree structure from the Charniak parser via SWIG. This lets you traverse and view Treebank-style trees.
waterworks: My Python utility library (everyone else has one...)
Coming later:
Hogwash: Metaclustering system (only works with the Brown CS setup, but could be modified to work with other systems). I also use this to keep track of results from my experiments, so it is a basic persistence mechanism and results database.