Yury Selivanov <yseliva...@gmail.com> added the comment:
Yeah, I follow the reasoning.
My use case:
class Something:
def __init__(self):
self._lock = asyncio.Lock()
async def do_something():
async with self._lock:
...
And `Something` won't be created in a coroutine. So now I have to jump through
the hoops to implement lazy lock instantiation.
> But the lock is tightly coupled with a loop instance. In other words, the
> loop belongs to the loop.
>The lock cannot be used after the loop dies (stopped and closed).
I agree. Maybe the solution should be this then:
class asyncio.Lock:
def _get_loop(self):
loop = asyncio.get_running_loop()
if self._loop is None:
self._loop = loop
if loop is not self._loop: raise
if not loop.is_running(): raise
async def acquire(self):
loop = self._get_loop()
...
This is what would guarantee all protections you want and would also allow to
instantiate `asyncio.Lock` in class constructors, simplifying code.
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<https://bugs.python.org/issue42392>
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