Robert Kern wrote:
> http://docs.python.org/lib/typesmapping.html
> """
> Keys and values are listed in an arbitrary order which is non-random, varies
> across Python implementations, and depends on the dictionary's history of
> insertions and deletions.
> """


Even this does not tell me that if I use a specified implementation
that my results can vary from run to run.  That is, it still does
not communicate that rerunning an *unchanged* program with an
*unchanged* implementation can produce a change in results.

Alan Isaac
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