At
http://www.python.org/dev/dev_intro.html you will find an essay
entitled, "Guido, Some Guys, and a Mailing List: How Python is
Developed". The essay covers the development process of Python without
going into extreme nitty-gritty details. The purpose of this essay is
to provide an easy introduction to how Python is developed culminated in
a single document.
There is also extensive coverage on how anyone, and I mean **anyone**,
can help with Python's development.
If the basic process of how Python's evolution is handled has ever
interested you, then this essay should hopefully shed some light on the
subject.
-Brett C.