MRO problems with diamond inheritance?

[Michele Simionato]

Well, writing that book would be a major undertaking that I am not
willing
to take any soon ;)

However, all you are asking for is already in my lectures at ACCU:
http://www.reportlab.org/~andy/accu2005/pyuk2005_simionato_wondersofpython.zip

>From the README:

"""
<snip>
Generally speaking these lectures are unpolished, too concise, with
more code than words, and with cutting edge/experimental code.
Read them at your risk and peril. Take in account the fact that they
were prepared as a last minute replacement for Alex Martelli's
tutorial,
with a limited amount of time and a very advanced program to follow.

My main concern in preparing these notes was to give the readers a few
*ideas*, not polished solutions. If you are reading these notes, you
will be more than capable to customize these ideas to your own
situation
and to fix the unavoidable little bugs, imperfections, annoyances.

Whereas I recommend the first lecture about iterators and generators
to everybody, take in account than the second and especially the
third lecture may cause your head to explode. I do not take any
responsability in that case.
"""
                              Michele Simionato