Apply rules set by https://gerrit-review.googlesource.com/c/git-repo/+/362954/ across the codebase and fix any lingering errors caught
by flake8. Also check black formatting in run_tests (and CQ).
Bug: b/267675342
Change-Id: I972d77649dac351150dcfeb1cd1ad0ea2efc1956
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/363474
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>
Remove logic to handle importing the right version of pytest.
'./run_tests' still works but this allows presubmit builders to test
using 'vpython3 ./run_tests'.
Google-Bug-Id: b/266734831
Change-Id: I6a543c1f4b5b4449e723095b4a70e5228b1ccd34
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/356717
Tested-by: Gavin Mak <gavinmak@google.com>
Reviewed-by: Josip Sokcevic <sokcevic@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
