bsddbmodule.c - Interface to the Berkeley DB interface (yet another dbm clone).
cursesmodule.c - Curses interface.
dbhashmodule.c - Obsolete; this functionality is now provided by bsddbmodule.c.
dlmodule.c - A highly experimental and dangerous device for calling arbitrary C functions in arbitrary shared libraries.
newmodule.c - Tommy Burnette's `new' module (creates new empty objects of certain kinds) - dangerous.
nismodule.c - NIS (a.k.a. Sun's Yellow Pages) interface.
timingmodule.c - Measure time intervals to high resolution (obsolete - use time.clock() instead).
stdwinmodule.c - Interface to STDWIN (an old, unsupported platform-independent GUI package). Obsolete; use Tkinter for a platform-independent GUI instead.
The following are SGI specific:
clmodule.c - Interface to the SGI compression library.
svmodule.c - Interface to the ``simple video'' board on SGI Indigo (obsolete hardware).