aiohttp 3.0.0 doesn't exist for Python 3.4.
aiohttp 3.0.0 doesn't exist for Python 3.4.

From the release notes:

> Drop Python 3.4 and Python 3.5.0, 3.5.1, 3.5.2. Minimal supported Python versions are 3.5.3 and 3.6.0. yield from is gone, use async/await syntax. (#2343)

klen/aioauth-client