Async context manager #535
Description
Usecase:
c = Counter("errors_count")
@c.count_exceptions()
def foo(): # counter = 1
raise Exception()
@c.count_exceptions()
async def foo_async(): # counter still 1
await sleep(1)
raise Exception()
Quick search in project did nothing to me.
It would be cool if counter (and other objects) would handle this right out of the box, especially if we're talking about metrics for web world.