converting base class instance to derived class instance

[François Pinard]

[Michele Simionato]
> François Pinard <pinard at iro.umontreal.ca> wrote in message news:<mailman.1372.1076344361.12720.python-list at python.org>...
> > By the way, what is a "heap type"?

> More or less, an user defined type, as opposed to a builtin type:

> http://groups.google.it/groups?hl=it&lr=&ie=UTF-8&threadm=2259b0e2.0301230800.50ab9858%40posting.google.com&rnum=1&prev=/groups%3Fhl%3Dit%26lr%3D%26ie%3DISO-8859-1%26q%3Dsimionato%2Bheap%2Btype%26meta%3Dgroup%253Dcomp.lang.python.*

That sequence of articles was instructive, thanks!

Maybe the Python documentation should be amended, somewhere, somehow, so
the expression "heap type" is explained.  Or maybe it is already and I
just did not find it.  The fact is that it is used in a diagnostic.

-- 
François Pinard   http://www.iro.umontreal.ca/~pinard