Modules/packages by GvR?

Terry Reedy tjreedy at
Fri Aug 28 18:09:39 CEST 2009

Matimus wrote:
> On Aug 28, 7:58 am, gb345 <gb... at> wrote:
>> Are there any Python-only modules or packages in the latest releases
>> of Python 2.x or Python 3.x that were largely written by Guido van
>> Rossum?  What's the best way to find this out?  I know that some
>> modules mention the author(s) in the source code, but this does
>> not seem to be true most of the time, as far as I can tell.
>> I'm interested in reading this code as prime examplars of "Pythonicity".
>> (I'm sure that many other programmers could serve as models of the
>> Pythonic ideal, but I doubt that there would be a *less debatable*
>> choice in this category than GvR.)
>> Many thanks in advance,
>> Gabe
> I'm sure there are. You might be able to figure that out by browsing
> the source repository: But, I wouldn't
> necessarily say that any code written by Guido would make a good
> example of 'Pythonic' code. Not that he doesn't create good code, but
> the language and standards have evolved over time. There may be code
> that he wrote from the 2.0 days that may have been perfectly
> 'Pythonic' then but is just out-of-date now.

I am not aware of any recent stdlib modules written by Guido.  I suspect 
most older ones have been updated at least once by someone else.

> In general though, browsing the standard modules is a good way to find
> examples, no matter who wrote it. Just keep in mind when it was
> written more than who wrote it.

The itertools module is relatively recent and has been recommended as 
one to read.

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