Tests failing against Python 3.6

[simonw]

https://github.com/simonw/datasette/runs/4877484366

E           File "/opt/hostedtoolcache/Python/3.6.15/x64/lib/python3.6/site-packages/uvicorn/server.py", line 67, in run
E             return asyncio.run(self.serve(sockets=sockets))
E         AttributeError: module 'asyncio' has no attribute 'run'

I think this may mean uvicorn has dropped support for Python 3.6.

[simonw]

simonw/latest-datasette-with-all-plugins@1e12ffe shows that 5 days ago Datasette upgraded from Uvicorn 0.16 to 0.17

Sure enough, in the changelog for 0.17: https://github.com/encode/uvicorn/blob/0.17.0/CHANGELOG.md

• Drop Python 3.6 support (#1261) 06/01/22

[simonw]

https://pypistats.org/packages/datasette shows Python 3.6 is 0.24% of Datasette downloads.

[simonw]

Relevant:

• Drop support for Python 3.6 #1577