This directory is for modules that are intended to go into the main Lib
directory of Python. They can be developed here until they are ready for
evaluation for inclusion into Python itself.

(This prevents iteration of development within the core, yet also provides
for public development of (new) modules)

Note: a module's presence here does not mean it *will* go into Lib, but
merely that (should it be accepted) the appropriate place is Lib.