I realized while working on srittau/type-stub-pep#64 that a
few things we do in existing enum definitions in typeshed are
problematic:
- Using "= ..." doesn't allow type checkers to correctly type the
result of Enum.MEMBER.value. In fact, mypy at least infers
.value to be "Ellipsis" if you do this.
- Properties on the enum values themselves, like HTTPStatus.phrase,
should not be specified directly as attributes, because it makes
type checkers think that the properties themselves are enum
members.
I ended up doing a bit more cleanup to the signal module:
- Remove unnecessary ... initializers.
- Remove unnecessary _SIG = Signals alias.
- I don't have Windows to test, but the C code for _signal suggests
that CTRL_C_EVENT and CTRL_BREAK events are not Signals, but just ints:
1dbd084f1f/Modules/signalmodule.c (L1575)
* Almost all re functions take a compiled pattern. (Even re.compile()!)
Fixes#188
Note: I'm using AnyStr so that the type of string used for pattern and
for the rest of the arguments must match. This is not 100% correct,
since Python 2 sometimes allows mixed types. But sometimes it
doesn't, depending on the values (e.g. non-ASCII bytes), and Python 3
always insists on matching, so I think this is actually a good idea.
* Same treatment for stdlib/3/re.pyi.
