pylint-errors
E1701 (not-async-context-manager)
Problematic code:
class ContextManager:
def __enter__(self):
pass
def __exit__(self, *exc):
pass
async def foo():
async with ContextManager():
pass
Correct code:
class AsyncContextManager:
def __aenter__(self):
pass
def __aexit__(self, *exc):
pass
async def foo():
async with AsyncContextManager():
pass
Rationale:
Async context manager doesn’t implement __aenter__ and __aexit__.
Used when an async context manager is used with an object that does not
implement the async context management protocol. This message belongs to the
async checker. It can’t be emitted when using Python < 3.5.