[Python-Dev] Descriptor write-up [second draft]

[Raymond Hettinger]

Thanks for the first round of comments.
Here is a second draft:

http://users.rcn.com/python/download/Descriptor.htm

Changes:

* various grammatical, punctuation, etc
* changed variable names between examples
* discuss data and non-data descriptors
* show the precedence of the data vs non-data descriptors
* moved the C code references inside the Python code
* eliminated the python code for obj.__getattribute__
   because code was complex enough to hide the discussion points

To do:

When this one is done, will use it as a basis for 
updating the official docs.

The final version of this will be done through
docutils with reStructured text.  That ought to
take care of the vagaries of converting a Word
document to html.


Raymond