Daniel Li a9366df7e8 Improve signatures in concurrent.futures backport (#2233) ...

Use parameterized types in Future.add_done_callback(), wait(), and
as_completed().

Mark the traceback argument to Future.set_exception_info() as optional.

2018-06-15 08:21:01 -07:00

..

2

Improve signatures in concurrent.futures backport (#2233)

2018-06-15 08:21:01 -07:00

2and3

Values of data are Optional (#2231)

2018-06-15 07:48:55 -07:00

3

Copy stdlib/3.4/enum.pyi to third_party/3/enum.pyi to satisfy tests (#2214)

2018-06-11 14:28:47 -07:00