how to add new print %b format to python?

[Rusty Shackleford]

I have a Summer in front of me without any school, and I'd like to add a
new format for python print strings that will show any number in a
binary representation.  For example:

>>> '%b' % 3
11
>>> '%b' % 5
101

You get the idea.  I've written functions that return strings, so that
part is done, but where do I go to tinker with the python interpreter to
add this new format?

Please don't argue with me about whether this is an advisable goal in
itself -- I'm using it as a method to learn about the internals of the
python language.


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