Jelle Zijlstra 94ab32ba59 Fix abstract classes for Python 3 (#2239) ...

* add metaclass=ABCMeta to some classes

* mark some more classes as explicitly abstract

* make some more classes concrete

2018-06-16 10:18:54 -07:00

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contextvars.pyi

Fix abstract classes for Python 3 (#2239)

2018-06-16 10:18:54 -07:00

dataclasses.pyi

Update return type of dataclasses.field (#2197)

2018-06-05 16:57:20 +01:00