Python 3.5.3 (fdd60ed87e941677e8ea11acf9f1819466521bf2, Apr 26 2018, 01:25:35)
[PyPy 6.0.0 with GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>> import aiohttp
/usr/local/Cellar/pypy3/6.0.0/libexec/lib-python/3/importlib/_bootstrap.py:223: UserWarning: builtins.type size changed, may indicate binary incompatibility. Expected 872, got 416
  return f(*args, **kwds)
>>>> aiohttp.__version__
'3.1.3'