Test codes are not PEP8 compliant

[Khairi Hafsham]

Wanted to contribute to sqlalchemy and thought I could help by improving the test codes to be pep8 compliant. Especially after reading the following in the develop section:

Tests should stick to PEP8. Many older tests currently do not; this is an area in which we welcome new help.

Running the command below inside sqlalchemy (master, c703b9ce89) folder will produce 9413 lines with pep8 related issues. Tested using pycodestyle version 2.2.0

pycodestyle tests/ | wc -l

Current work is being done at https://github.com/khairihafsham/sqlalchemy/tree/pep8-tests

[Mike Bayer]

thanks very much!!

[Mike Bayer]

Make all tests to be PEP8 compliant

tested using pycodestyle version 2.2.0

Fixes: #3885 Change-Id: I5df43adc3aefe318f9eeab72a078247a548ec566 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/343

→ <<cset 772374735da2>>

[Mike Bayer]

thanks a TON for this! I can see a lot of it was done manually, thanks so much for that effort!