Spray is a build tool helping you in configuring, building and installing your project It is similar in purpose to the autotools or CMake but created following the spirit of SCons and waf using the Python programming language.
"PownceFS is a Fuse filesystem that mounts your friends’ files from Pownce as a local filesystem. Given a mountpoint, it fakes a directory for each of your friends and puts all the files they’ve uploaded inside. "
NLTK — the Natural Language Toolkit — is a suite of open source Python modules, data and documentation for research and development in natural language processing. NLTK contains Code supporting dozens of NLP tasks, along with 40 popular Corpora and extensive Documentation including a 375-page online Book. Distributions for Windows, Mac OSX and Linux are available.