When using type checkers like Mypy, it's sometimes necessary to give them different code to inspect. This is done via if TYPE_CHECKING blocks, e.g.
from typing import TYPE_CHECKING
import functools
def _retry(callback, count: int) -> None:
pass
if TYPE_CHECKING:
retry = _retry
else:
retry = functools.partial(_retry, count=3)
The rule SIM108 will emit (or --unsafe-fixes):
example.py:7:1: SIM108 Use ternary operator `retry = _retry if TYPE_CHECKING else functools.partial(_retry, count=3)` instead of `if`-`else`-block
In that case, type checkers like Mypy would not enable their special handling of if TYPE_CHECKING though, inferring the type of retry as a union type between the two expressions.
The SIM108 rule should ignore this case.
ruff --isolated --select SIM108 example.py- Version: 0.1.0
When using type checkers like Mypy, it's sometimes necessary to give them different code to inspect. This is done via
if TYPE_CHECKINGblocks, e.g.The rule SIM108 will emit (or
--unsafe-fixes):In that case, type checkers like Mypy would not enable their special handling of
if TYPE_CHECKINGthough, inferring the type ofretryas a union type between the two expressions.The SIM108 rule should ignore this case.
ruff --isolated --select SIM108 example.py