Python3.6 AttributeError: module 'asyncio' has no attribute 'run'

Just in case this is useful to someone else but for me the issue was my file was called asyncio.py. I renamed it to asyncio_example.py and it started to work again (it was failing at the import statement for asyncio).

This issue helped me realize this: https://github.com/tornadoweb/tornado/issues/2868

asyncio.run is a Python 3.7 addition. In 3.5-3.6, your example is roughly equivalent to:

import asyncio

futures = [...]
loop = asyncio.get_event_loop()
loop.run_until_complete(asyncio.wait(futures))

The asyncio.run() function was added in Python 3.7. From the asyncio.run() function documentation:

New in version 3.7: Important: this function has been added to asyncio in Python 3.7 on a provisional basis.

Note the provisional part; the Python maintainers forsee that the function may need further tweaking and updating, so the API may change in future Python versions.

At any rate, you can't use it on Python 3.6. You'll have to upgrade or implement your own.

A very simple approximation would be to use loop.run_until_complete():

loop = asyncio.get_event_loop()
result = loop.run_until_complete(coro)

although this ignores handling remaining tasks that may still be running. See the asyncio.runners source code for the complete asyncio.run() implementation.