[Python-Dev] License for code extracted from a Python library?

Hi -

I'm not sure if this is the right place to ask this, but I don't know of a more appropriate place. 

Sometime around 2007 I first extracted a function that was in Python's Cmd class and used that. Since then, I have modified and generalized it a bit more and turned it into a Python egg called columnize.  I also ported it to Ruby and made Ruby package or gem. A couple of people/companies have asked about redistributing this and have asked for a more MIT-like and less GPL-like license. I guess they will bundle this with their proprietary code. 

For the Python package, I used PSL Version 2, but is this legitimate? code.google.com doesn't seem to recognize in their list of licenses so that  suggests what I did might not be the right thing. (So instead, code.google.com I selected the MIT License.)

Can a MIT License be used for code extracted from Python's standard library? Other comments or suggestions?

Thanks.
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