Timeout context manager for asyncio programs
Project description
async-timeout
asyncio-compatible timeout context manager.
Usage example
The context manager is useful in cases when you want to apply timeout logic around block of code or in cases when asyncio.wait_for() is not suitable. Also it’s much faster than asyncio.wait_for() because timeout doesn’t create a new task.
The timeout(timeout, *, loop=None) call returns a context manager that cancels a block on timeout expiring:
with timeout(1.5):
yield from inner()
If inner() is executed faster than in 1.5 seconds nothing happens.
Otherwise inner() is cancelled internally by sending asyncio.CancelledError into but asyncio.TimeoutError is raised outside of context manager scope.
timeout parameter could be None for skipping timeout functionality.
Installation
$ pip install async-timeout
The library is Python 3 only!
CHANGES
1.2.0 (2017-03-11)
Extra check on context manager exit
0 is no-op timeout
1.1.0 (2016-10-20)
Rename to async-timeout
1.0.0 (2016-09-09)
The first release.
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