Here are the remaining directories with errors: testing/awsy: 94 errors testing/firefox-ui: 6 errors testing/geckodriver: 17 errors testing/gtest: 19 errors testing/jsshell: 1 error testing/marionette: 352 errors testing/mozharness: 806 errors testing/runtimes: 10 errors testing/tools: 72 errors testing/tps: 57 errors testing/web-platform: 6473 errors Let's at least use this bug to tackle the low-hanging fruit (<50 errors). Some of the larger directories will warrant their own bug.

FWIW I don’t particularly think it’s time well spent to fix testing/marionette before we figure out which Mn tests are duplicated in WPT (Wd). I am also working on a deprecation plan for the Marionette Python client, but we will keep maintaining it for internal use for the foreseeable future. Fixing any lint problems specifically with testing/marionette/client/marionette_driver/**/*.py and testing/marionette/harness/marionette_harness/*.py (excluding its test subdirectory) might be worthwhile.

Also, presumably testing/web-platform has its own linting system.

Before this change, testing/awsy had 94 errors and testing/geckodriver had 17. The errors have been reduced to 8 and 1 respectively.

Pushed by ahalberstadt@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/41e4eb2f9e47 Fixed linter errors in testing/awsy and testing/geckodriver r=ahal

Before this change, testing/gtest had 19 errors. These errors have been resolved. Bug 1506611 - Fixed flake8 errors in testing/gtest

thanks for doing that work :)

Pushed by ahalberstadt@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/807f9818930a Fixed linter errors in testing/gtest r=ahal

Before this change, testing/tps had 19 linter errors. These have been resolved.

Pushed by ahalberstadt@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/ad473f67f769 Fixed linter errors in testing/tps. r=ahal