[Python] How to type hint a generator in Python 3?

According to PEP-484, we should be able to type hinting a generator function as follows:

from typing import Generator

def generate() -> Generator[int, None, None]:
for i in range(10):
yield i

for i in generate():
print(i)


However, the list comprehension gives the following error in PyCharm.

Expected 'collections.Iterable', got 'Generator[int, None, None]' instead less... (⌘F1)
​

Any idea why PyCharm is considering this as error?


A few clarification after reading some answers. I am using PyCharm Community Edition 2016.3.2 (the latest version) and have imported the typing.Generator (updated in the code). The above code runs just fine, but PyCharm considers this an error:



So, I'm wondering if this is actually an error or an unsupported feature in PyCharm.

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