bpo-29974: Improve typing.TYPE_CHECKING example (GH-982)

* Fix PEP 8 (SomeType instead of some_type)
* Add a function parameter annotation
* Explain, using wording from PEP 484 and PEP 526,
  why one annotation is in quotes and another is not.

Suggested by Ivan Levkevskyi.

Mathias Rav committed 9y ago

87c07fe9d908d0a2143fcc8369255c6ff3241503

Parent: 0d637e2

Committed by Berker Peksag <berker.peksag@gmail.com> on 4/26/2017, 10:49:45 AM