Support for ruff to automatically resolve `__all__` statements.

[Jason Leaver]

It would be very useful and appreciated if there was an option to have ruff automatically resolve the __all__ statement. A configuration might look something like...

[tool.ruff]
auto-all = ["**/__init__.py"]

From the pep regarding __all__.

To better support introspection, modules should explicitly declare the names in their public API using the __all__ attribute. Setting all to an empty list indicates that the module has no public API.

That fix might look something like.

Module level “dunders” should be placed after the module docstring but before any import statements except from future imports module-level-dunder-names

# app/__init__.py
"""docstring"""

from .core import my_function

running something along the lines of ruff check auto-all="**/__init__.py" --fix app would result in...

# app/__init__.py
"""docstring"""
__all__ = ["my_function"]

from .core import my_function

Take this example from the dask/array/__init__.py where the __all__ is not set and the resulting complaint from pylance.

[Zanie Blue]

Hi! I think we're adding what you're looking for in #11314