Currently the pylint listed is 0.25.2 which is from 2012. Use latest and greatest for Python 3 and bump to the last 0.x for 2.
Created attachment 420070 [details] Patch
*** Bug 221099 has been marked as a duplicate of this bug. ***
Committed r272763: <https://commits.webkit.org/r272763> All reviewed patches have been landed. Closing bug and clearing flags on attachment 420070 [details].
<rdar://problem/74259101>