In https://github.com/python/typeshed/issues/180, we discussed a slight ambiguity with PEP 484's mention of forward references. It wasn't entirely clear that they don't apply unless using function annotations. This patch attempts to clear up the ambiguity.
The PEPs repo is not on github. Please resubmit this patch as a PR at https://github.com/python/peps. (Sorry for all the indirections to different trackers.)