sys.exc_clear() does not exist in Python 3
Fixes: #1641
:thumbsup:
@breilly - Can you just adjust commit message to reference #1461?
Metadata Update from @tkopecek: - Pull-request tagged with: testing-ready
ping @breilly
rebased onto 5131929df17fca939ea13909f14d198ab60e2e96
Commit 9d2faca4 fixes this pull-request
Pull-Request has been merged by tkopecek
sys.exc_clear() does not exist in Python 3