These directories provide lists or repositories of many different types of packages.
- Geosciences Links from SciPy.
- Links from PyClimate.
- Links from PyNGL/PyNIO.
- Pythonmac.org: Repository of binaries for Python on the Mac.
- Python Package Index: Hosted by the maintainers of the language. It has a nice interface based on categories; here is the list for the scientific/engineering:atmospheric science topic.
- Vaults of Parnassus: An older but pretty comprehensive index to packages and resources that’s no longer online. Link is to the Internet Archive snapshot.
Data Format Listings
These lists provide directories of packages to access files in various data formats.
- The Essential Python Modules for GIS: By Michalis Avraam.
Language and Tool Interfaces
- GUI Programming in Python: There are a lot of packages that support GUI programming.