Make Mapping covariant. - #512

Merged

JukkaL merged 3 commits into

covariant-mapping

Sep 5, 2016

Commits on Sep 2, 2016

Make Mapping covariant.
Guido van Rossum
authored and
Guido van Rossum
committed
cb2836c
Delete outdated comment.
Guido van Rossum
authored and
Guido van Rossum
committed
febb476
Backpeddle a bit -- Mapping key type should not be covariant.
Guido van Rossum
committed
199c983