fix mypy to max of 0.560 pending https://github.com/python/mypy/issues/4563#39

Merged

david-koenig merged 1 commit intoaws:masterfrom

mattsb42-aws:mypy-version-fix

May 1, 2018

Commits on Apr 28, 2018

fix mypy to max of 0.560 pending https://github.com/python/mypy/issues/4563
mattsb42-aws
committed