"Antoon Pardon" <[EMAIL PROTECTED]> wrote in message 
news:[EMAIL PROTECTED]
> I see this as my contribution to the communities who has provided me
> with all kinds of things that are usefull to me. I'm willing to put
> time into this,

Great.  My human, non-lawyer advice, if I were to give it, would be to 
worry less and remember that PSF exists to promote Python, not to sue 
Python promoters.

>From what I understand from what you have written, you have written code 
for a tutorial based on one module of the library.  I personally would 
treat this minor extraction differently from a 'derived' work consisting of 
an alternate interpreter + library, such as from ActiveState, or Enthought, 
or Jython, or Iron-Python.  I think I would simply put lines in the header 
something like:
"Derived from module heapify in the library included with CPython 2.x, (C) 
<include PSA's copyright notice>, available from www.python.org/wherever.

Terry J. Reedy



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