[New-bugs-announce] [issue9859] Add tests to verify API match of modules with 2 implementations

[Daniel Stutzbach]

New submission from Daniel Stutzbach <daniel at stutzbachenterprises.com>:

Recently it came to light that the classes in C and Python implementations of the io module have slightly different attributes (issue9858).  I propose the addition of a helper function in Lib/test/support.py to verify that the classes in two different implementations define the same attributes.  Then, we can add tests to use that function to verify that C and Python implementations define the same API (for the io module, but also for other modules where we have two implementations).  The script I added to issue9858 could serve as a starting point for such a function.

Since CPython's standard library is the de facto reference implementation, it's important that it define one API and not two slightly different ones. :-)

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components: Tests
messages: 116445
nosy: stutzbach
priority: low
severity: normal
stage: needs patch
status: open
title: Add tests to verify API match of modules with 2 implementations
type: feature request
versions: Python 3.2

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9859>
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