python asynchronous context manager

Question

In Python Lan Ref. 3.4.4, it is said that __aenter__() and __aexit__() must return awaitables. However, in the example async context manager, these

Answer 1

The methods in this example do not return None. They are async functions, which automatically return (awaitable) asynchronous coroutines. This is similar to how generator functions return generator iterators, even though they usually have no return statement.