Stubgen _operator.

This is needed by hmac. Stubgen has a parse failure on the operator
module (without the underscore prefix).

stdlib/3/_operator.pyi

@@ -0,0 +1,71 @@
+# Stubs for _operator (Python 3.5)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+def _compare_digest(*args, **kwargs): ...
+def abs(a): ...
+def add(a, b): ...
+def and_(a, b): ...
+def concat(a, b): ...
+def contains(a, b): ...
+def countOf(a, b): ...
+def delitem(a, b): ...
+def eq(a, b): ...
+def floordiv(a, b): ...
+def ge(a, b): ...
+def getitem(a, b): ...
+def gt(a, b): ...
+def iadd(*args, **kwargs): ...
+def iand(*args, **kwargs): ...
+def iconcat(*args, **kwargs): ...
+def ifloordiv(*args, **kwargs): ...
+def ilshift(*args, **kwargs): ...
+def imatmul(*args, **kwargs): ...
+def imod(*args, **kwargs): ...
+def imul(*args, **kwargs): ...
+def index(a): ...
+def indexOf(a, b): ...
+def inv(a): ...
+def invert(a): ...
+def ior(*args, **kwargs): ...
+def ipow(*args, **kwargs): ...
+def irshift(*args, **kwargs): ...
+def is_(a, b): ...
+def is_not(a, b): ...
+def isub(*args, **kwargs): ...
+def itruediv(*args, **kwargs): ...
+def ixor(*args, **kwargs): ...
+def le(a, b): ...
+def length_hint(obj, default=0): ...
+def lshift(a, b): ...
+def lt(a, b): ...
+def matmul(a, b): ...
+def mod(a, b): ...
+def mul(a, b): ...
+def ne(a, b): ...
+def neg(a): ...
+def not_(a): ...
+def or_(a, b): ...
+def pos(a): ...
+def pow(a, b): ...
+def rshift(a, b): ...
+def setitem(a, b, c): ...
+def sub(a, b): ...
+def truediv(a, b): ...
+def truth(a): ...
+def xor(a, b): ...
+
+class attrgetter:
+    def __init__(self, *args, **kwargs): ...
+    def __call__(self, *args, **kwargs): ...
+    def __reduce__(self): ...
+
+class itemgetter:
+    def __init__(self, *args, **kwargs): ...
+    def __call__(self, *args, **kwargs): ...
+    def __reduce__(self): ...
+
+class methodcaller:
+    def __init__(self, *args, **kwargs): ...
+    def __call__(self, *args, **kwargs): ...
+    def __reduce__(self): ...