How can I package a python script and modules into a single script?

[Noah]

Bingo! That is what I was thinking of.
    http://effbot.org/zone/squeeze.htm
It turns out that it doesn't quite do what I want
because the resulting script is tightly coupled
to the version of Python used to build the package.
It compiles the PYC byte-code into the package.
It's neat and I may be able to use the ideas to do
what I want.

Yours,
Noah