Files
Martijn Pieters 1d9e126037 Switch to ruff to handle linting and formatting
Ruff handles black, flake8 and isort in one package, and is way faster.
The isort rules had not been enforced, so this commit includes a lot
of import resorting changes.

I switched to flake8-bugbear and the standard black-compatible line
length of 80 + 10% (so max 88 characters), so some line reflowing is
included too.

Finally, because bugbear rightly points out that `setattr()` is less
performant, I've switched the `__signature__` assigment back to using
a direct assignment with type ignore comment.
2023-05-16 12:18:24 +01:00

41 lines
1.1 KiB
Python

import abc
from typing import Any, Awaitable, Callable, Dict, Optional, Tuple, Union
from starlette.requests import Request
from starlette.responses import Response
from typing_extensions import Protocol
_Func = Callable[..., Any]
class KeyBuilder(Protocol):
def __call__(
self,
__function: _Func,
__namespace: str = ...,
*,
request: Optional[Request] = ...,
response: Optional[Response] = ...,
args: Tuple[Any, ...],
kwargs: Dict[str, Any],
) -> Union[Awaitable[str], str]:
...
class Backend(abc.ABC):
@abc.abstractmethod
async def get_with_ttl(self, key: str) -> Tuple[int, Optional[bytes]]:
raise NotImplementedError
@abc.abstractmethod
async def get(self, key: str) -> Optional[bytes]:
raise NotImplementedError
@abc.abstractmethod
async def set(self, key: str, value: bytes, expire: Optional[int] = None) -> None:
raise NotImplementedError
@abc.abstractmethod
async def clear(self, namespace: Optional[str] = None, key: Optional[str] = None) -> int:
raise NotImplementedError