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bpo-45514: Deprecate importlib resources legacy functions. (GH-29036)

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* bpo-45514: Apply changes from importlib_resources@a3ef4128c6

* Mark legacy functions as deprecated in the docs and link to the migration docs in importlib_resources docs.

* Apply changes from importlib_resources@329ae9d5f2c.

* Indicate importlib.resources as a module.

Co-authored-by: Filipe Laíns <lains@riseup.net>
This commit is contained in:
Jason R. Coombs 2021-11-24 02:51:37 -05:00 • committed by GitHub
parent 324527012f
commit d5cd2effa6
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10 changed files with 204 additions and 84 deletions
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20
Lib/importlib/_itertools.py
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@ -1,11 +1,27 @@
from itertools import filterfalse
from typing import (
Callable,
Iterable,
Iterator,
Optional,
Set,
TypeVar,
Union,
)
def unique_everseen(iterable, key=None):
# Type and type variable definitions
_T = TypeVar('_T')
_U = TypeVar('_U')
def unique_everseen(
iterable: Iterable[_T], key: Optional[Callable[[_T], _U]] = None
) -> Iterator[_T]:
"List unique elements, preserving order. Remember all elements ever seen."
# unique_everseen('AAAABBBCCDAABBB') --> A B C D
# unique_everseen('ABBCcAD', str.lower) --> A B C D
seen = set()
seen: Set[Union[_T, _U]] = set()
seen_add = seen.add
if key is None:
for element in filterfalse(seen.__contains__, iterable):