[Python-Dev] Choosing a best practice solution for Python/extension modules

[Brett Cannon]

On Fri, Feb 20, 2009 at 12:31, Daniel Stutzbach <
daniel at stutzbachenterprises.com> wrote:

> On Fri, Feb 20, 2009 at 1:44 PM, Brett Cannon <brett at python.org> wrote:
>
>> Now, from what I can tell, Antoine is suggesting having _pyio and a _io
>> and then io is simply:
>>
>>     try: from _io import *
>>     except ImportError: from _pyio import *
>>
>> That works for testing as you can then have test classes have an attribute
>> for the module to use and then create two subclasses which set what module
>> to use (kind of like how test_warnings currently does it). But this only
>> really works for complete module replacements, not modules like pickle where
>> only key portions have been rewritten (which happens more often than the
>> complete rewrite).
>>
>
> A slight change would make it work for modules where only key functions
> have been rewritten.  For example, pickle.py could read:
>
> from _pypickle import *
> try: from _pickle import *
> except ImportError: pass
>

True, although that still suffers from the problem of overwriting things
like __name__, __file__, etc.

-Brett
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