[issue46622] Support decorating a coroutine with functools.cached_property

[Andrew Svetlov]

Andrew Svetlov <andrew.svetlov at gmail.com> added the comment:

>From my point of view, both sync and async functions can be cached.

Sync and async iterators/generators are other beasts: they don't return a value but generate a series of items. The series can be long and memory-consuming, I doubt if it should be cached safely.

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<https://bugs.python.org/issue46622>
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