fix and activate pycodestyle E221 and E225

[fchapoton]

done using autopep8

this is about

108     E221 multiple spaces before operator
58      E225 missing whitespace around operator

[NathanDunfield]

The failing windows CI is just a test that occasionally fails due to randomness. After merging your previous request, there is a conflict with the lint config, do you want to resolve that?

[fchapoton]

Thanks. I have resolved the conflict.