aiohttp - running client example "RuntimeError: SSL is not supported"

I'm just trying to go through the aiohttp examples but I get the error with the first one:

import aiohttp
import asyncio

async def fetch(session, url):
    async with session.get(url) as response:
        return await response.text()

async def main():
    async with aiohttp.ClientSession() as session:
        html = await fetch(session, 'http://python.org')
        print(html)

loop = asyncio.get_event_loop()
loop.run_until_complete(main())

Running this gets me this:

File "C:\ProgramData\Anaconda2\envs\asyncio\lib\site-packages\aiohttp\connector.py", line 887, in _get_ssl_context raise RuntimeError('SSL is not supported.') RuntimeError: SSL is not supported.

Python version: 3.7.3
aiohttp version: 3.5.4

I searched for the problem replicating but I couldn't find anything... which leads me to think there's something wrong with my setup. I'm running this on Windows 8.1 using Anaconda2 env.

What's going on?

Solution

Aiohttp imports ssl as follows:

try:
    import ssl
    SSLContext = ssl.SSLContext
except ImportError:  # pragma: no cover
    ssl = None  # type: ignore
    SSLContext = object # type: ignore

If then it is still None, it rises error specified in your post. Thus, first of all try to import ssl manually. It should look somewhat like that:

>>> import ssl
>>> ssl
<module 'ssl' from '/usr/lib/python3.6/ssl.py'>

If it does not, then check/reinstall your python setup.