enable string arguments for start, end, and span methods of Match object

Author: detlefla

stdlib/2.7/typing.pyi

@@ -283,9 +283,9 @@ class Match(Generic[AnyStr]):
 
     def groups(self, default: AnyStr = ...) -> Sequence[AnyStr]: ...
     def groupdict(self, default: AnyStr = ...) -> dict[str, AnyStr]: ...
-    def start(self, group: int = ...) -> int: ...
-    def end(self, group: int = ...) -> int: ...
-    def span(self, group: int = ...) -> Tuple[int, int]: ...
+    def start(self, group: Union[int, str] = ...) -> int: ...
+    def end(self, group: Union[int, str] = ...) -> int: ...
+    def span(self, group: Union[int, str] = ...) -> Tuple[int, int]: ...
 
 class Pattern(Generic[AnyStr]):
     flags = 0

stdlib/3/typing.pyi

@@ -360,9 +360,9 @@ class Match(Generic[AnyStr]):
 
     def groups(self, default: AnyStr = ...) -> Sequence[AnyStr]: ...
     def groupdict(self, default: AnyStr = ...) -> dict[str, AnyStr]: ...
-    def start(self, group: int = ...) -> int: ...
-    def end(self, group: int = ...) -> int: ...
-    def span(self, group: int = ...) -> Tuple[int, int]: ...
+    def start(self, group: Union[int, str] = ...) -> int: ...
+    def end(self, group: Union[int, str] = ...) -> int: ...
+    def span(self, group: Union[int, str] = ...) -> Tuple[int, int]: ...
 
 class Pattern(Generic[AnyStr]):
     flags = 0