don't add another import line from same package

[kretes]

For an input file like this:

from collections.abc import Callable

from typing import Collection

def a(a: Callable, b: Collection):
    pass

when applying pep585 hook I get:

from collections.abc import Collection
from collections.abc import Callable

def a(a: Callable, b: Collection):
    pass

while I expect:

from collections.abc import Callable, Collection

def a(a: Callable, b: Collection):
    pass

It could be argued this is the job of e.g. isort, however - pep585-upgrade already tries to be nice in terms of imports - e.g. in a larger import set - this new import line gets added nearby other import from same package and not at the end (which would be simplest I guess)

[sondrelg]

PRs are welcome, but I would indeed argue that this is out of scope for the package. Better to pair it with isort and call it a day in my opinion.

Pyupgrade also supports upgrading some of these type hints now (didn't when I wrote this), so I'd consider this package more useful as sort of a codemod for entire projects, to do one-time upgrades.