support py3.6 and py3.9

[graingert]

No description provided.

[codecov-commenter]

Codecov Report

Merging #26 (9c00b4d) into master (ad6f4d0) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #26   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           12        12           
  Lines          319       317    -2     
=========================================
- Hits           319       317    -2     

Impacted Files	Coverage Δ
src/aiometer/_impl/amap.py	100.00% <100.00%> (ø)

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[florimondmanca]

Thanks! Lots of interesting things in here. I'm thinking of passing these in separate PRs just out of cleanliness and moving this forward without blocking on specific items.

Edit: looks like we can start with #25 which takes this isolated approach nicely.

[florimondmanca]

Fab, thanks. 3.6 support is cheap enough (only requiring contextlib2 on 3.6) that I think we can be okay with adding support.