Merge bisect (#468)

* merge bisect

* comment while mypy#2035

Author: tharvik

stdlib/2.7/bisect.pyi

@@ -0,0 +1,22 @@
+# Stubs for bisect
+
+from typing import Any, Sequence, TypeVar
+
+_T = TypeVar('_T')
+
+# TODO uncomment when mypy#2035 is fixed
+#def bisect_left(a: Sequence[_T], x: _T, lo: int = ..., hi: int = ...) -> int: ...
+#def bisect_right(a: Sequence[_T], x: _T, lo: int = ..., hi: int = ...) -> int: ...
+#def bisect(a: Sequence[_T], x: _T, lo: int = ..., hi: int = ...) -> int: ...
+#
+#def insort_left(a: Sequence[_T], x: _T, lo: int = ..., hi: int = ...) -> int: ...
+#def insort_right(a: Sequence[_T], x: _T, lo: int = ..., hi: int = ...) -> int: ...
+#def insort(a: Sequence[_T], x: _T, lo: int = ..., hi: int = ...) -> int: ...
+
+def bisect_left(a: Sequence, x: Any, lo: int = ..., hi: int = ...) -> int: ...
+def bisect_right(a: Sequence, x: Any, lo: int = ..., hi: int = ...) -> int: ...
+def bisect(a: Sequence, x: Any, lo: int = ..., hi: int = ...) -> int: ...
+
+def insort_left(a: Sequence, x: Any, lo: int = ..., hi: int = ...) -> int: ...
+def insort_right(a: Sequence, x: Any, lo: int = ..., hi: int = ...) -> int: ...
+def insort(a: Sequence, x: Any, lo: int = ..., hi: int = ...) -> int: ...