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[Python-Dev] module customization

Nathaniel Smith njs at pobox.com
Thu Nov 16 01:16:11 EST 2017 
On Wed, Nov 15, 2017 at 10:14 PM, Nathaniel Smith <njs at pobox.com> wrote:
> On Wed, Nov 15, 2017 at 4:27 PM, Ethan Furman <ethan at stoneleaf.us> wrote:
>> The second way is fairly similar, but instead of replacing the entire
>> sys.modules entry, its class is updated to be the class just created --
>> something like sys.modules['mymod'].__class__ = MyNewClass .
>>
>> My request:  Can someone write a better example of the second method?  And
>> include __getattr__ ?

Doh, I forgot to permalinkify those. Better links for anyone reading
this in the future:

> Here's a fairly straightforward example:
>
> https://github.com/python-trio/trio/blob/master/trio/_deprecate.py#L114-L140

https://github.com/python-trio/trio/blob/3edfafeedef4071646a9015e28be01f83dc02f94/trio/_deprecate.py#L114-L140

> (Intentionally doesn't include __dir__ because I didn't want
> deprecated attributes to show up in tab completion. For other use
> cases like lazy imports, you would implement __dir__ too.)
>
> Example usage:
>
> https://github.com/python-trio/trio/blob/master/trio/__init__.py#L66-L98

https://github.com/python-trio/trio/blob/3edfafeedef4071646a9015e28be01f83dc02f94/trio/__init__.py#L66-L98

> -n
>
> --
> Nathaniel J. Smith -- https://vorpus.org

-- 
Nathaniel J. Smith -- https://vorpus.org
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