[Python-Dev] module customization

Nathaniel Smith njs at pobox.com
Thu Nov 16 01:14:20 EST 2017

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__ ?

Here's a fairly straightforward example:


(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:



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

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