Stubgen some more stdlib modules.

Copy doctest.pyi from 3 to 2.7.

stdlib/3/numbers.pyi

@@ -0,0 +1,80 @@
+# Stubs for numbers (Python 3.5)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any
+
+class Number:
+    __hash__ = ... # type: Any
+
+class Complex(Number):
+    def __complex__(self): ...
+    def __bool__(self): ...
+    @property
+    def real(self): ...
+    @property
+    def imag(self): ...
+    def __add__(self, other): ...
+    def __radd__(self, other): ...
+    def __neg__(self): ...
+    def __pos__(self): ...
+    def __sub__(self, other): ...
+    def __rsub__(self, other): ...
+    def __mul__(self, other): ...
+    def __rmul__(self, other): ...
+    def __truediv__(self, other): ...
+    def __rtruediv__(self, other): ...
+    def __pow__(self, exponent): ...
+    def __rpow__(self, base): ...
+    def __abs__(self): ...
+    def conjugate(self): ...
+    def __eq__(self, other): ...
+
+class Real(Complex):
+    def __float__(self): ...
+    def __trunc__(self): ...
+    def __floor__(self): ...
+    def __ceil__(self): ...
+    def __round__(self, ndigits=None): ...
+    def __divmod__(self, other): ...
+    def __rdivmod__(self, other): ...
+    def __floordiv__(self, other): ...
+    def __rfloordiv__(self, other): ...
+    def __mod__(self, other): ...
+    def __rmod__(self, other): ...
+    def __lt__(self, other): ...
+    def __le__(self, other): ...
+    def __complex__(self): ...
+    @property
+    def real(self): ...
+    @property
+    def imag(self): ...
+    def conjugate(self): ...
+
+class Rational(Real):
+    @property
+    def numerator(self): ...
+    @property
+    def denominator(self): ...
+    def __float__(self): ...
+
+class Integral(Rational):
+    def __int__(self): ...
+    def __index__(self): ...
+    def __pow__(self, exponent, modulus=None): ...
+    def __lshift__(self, other): ...
+    def __rlshift__(self, other): ...
+    def __rshift__(self, other): ...
+    def __rrshift__(self, other): ...
+    def __and__(self, other): ...
+    def __rand__(self, other): ...
+    def __xor__(self, other): ...
+    def __rxor__(self, other): ...
+    def __or__(self, other): ...
+    def __ror__(self, other): ...
+    def __invert__(self): ...
+    def __float__(self): ...
+    @property
+    def numerator(self): ...
+    @property
+    def denominator(self): ...