(env) OpenTTD-website.andythenorth(17)$ python fetch-downloads.py

Traceback (most recent call last):

  File "fetch-downloads.py", line 11, in <module>

    import aiohttp

  File "/Users/andy2/workspace/buildout.python/python-3.6/lib/python3.6/site-packages/aiohttp/__init__.py", line 6, in <module>

    from .client import (

  File "/Users/andy2/workspace/buildout.python/python-3.6/lib/python3.6/site-packages/aiohttp/client.py", line 12, in <module>

    from typing import (  # noqa

ImportError: cannot import name 'Coroutine'