Use inherited docstring from super or abstract base class for implementation methods with no docstring

[alexkreidler]

Sphinx and other documentation generators output the docstring associated with the super class method if the sub class implementation doesn't have a docstring.

See other discussion in general on StackOverflow and again.

It would be great to have this as a feature, so when hovering or completing a sub class method, the user can see the docstring from the superclass.

Thanks!

[jakebailey]

This issue has been fixed in version 2021.3.0, which we've just released. You can find the changelog here: https://github.com/microsoft/pylance-release/blob/main/CHANGELOG.md#202130-3-march-2021