try with Self everywhere, ignore override in datetimelike

Author: jorisvandenbossche

pandas/core/arrays/_mixins.py

@@ -114,7 +114,7 @@ def _validate_scalar(self, value):
     # ------------------------------------------------------------------------
 
     @overload
-    def view(self) -> ExtensionArray: ...
+    def view(self) -> Self: ...
 
     @overload
     def view(self, dtype: Dtype | None = ...) -> ArrayLike: ...

pandas/core/arrays/base.py

@@ -1805,7 +1805,7 @@ def copy(self) -> Self:
         raise AbstractMethodError(self)
 
     @overload
-    def view(self) -> ExtensionArray: ...
+    def view(self) -> Self: ...
 
     @overload
     def view(self, dtype: Dtype | None = ...) -> ArrayLike: ...

pandas/core/arrays/datetimelike.py

@@ -508,8 +508,8 @@ def astype(self, dtype, copy: bool = True):
         else:
             return np.asarray(self, dtype=dtype)
 
-    @overload
-    def view(self) -> ExtensionArray: ...
+    @overload  # type: ignore[override]
+    def view(self) -> Self: ...
 
     @overload
     def view(self, dtype: Literal["M8[ns]"]) -> DatetimeArray: ...

pandas/core/arrays/string_.py

@@ -546,7 +546,7 @@ def _str_map_nan_semantics(
         else:
             return self._str_map_str_or_object(dtype, na_value, arr, f, mask)
 
-    def view(self, dtype: Dtype | None = None) -> ExtensionArray:
+    def view(self, dtype: Dtype | None = None) -> Self:
         if dtype is not None:
             raise TypeError("Cannot change data-type for string array.")
         return super().view()