Add argument to rename index when resetting it.

Author: gcaria

pandas/core/frame.py

@@ -5542,6 +5542,7 @@ def reset_index(
         inplace: Literal[False] = ...,
         col_level: Hashable = ...,
         col_fill: Hashable = ...,
+        names: Hashable | Sequence[Hashable] = None,
     ) -> DataFrame:
         ...
 
@@ -5553,6 +5554,7 @@ def reset_index(
         inplace: Literal[True],
         col_level: Hashable = ...,
         col_fill: Hashable = ...,
+        names: Hashable | Sequence[Hashable] = None,
     ) -> None:
         ...
 
@@ -5564,6 +5566,7 @@ def reset_index(
         inplace: Literal[True],
         col_level: Hashable = ...,
         col_fill: Hashable = ...,
+        names: Hashable | Sequence[Hashable] = None,
     ) -> None:
         ...
 
@@ -5575,6 +5578,7 @@ def reset_index(
         inplace: Literal[True],
         col_level: Hashable = ...,
         col_fill: Hashable = ...,
+        names: Hashable | Sequence[Hashable] = None,
     ) -> None:
         ...
 
@@ -5585,6 +5589,7 @@ def reset_index(
         inplace: Literal[True],
         col_level: Hashable = ...,
         col_fill: Hashable = ...,
+        names: Hashable | Sequence[Hashable] = None,
     ) -> None:
         ...
 
@@ -5596,6 +5601,7 @@ def reset_index(
         inplace: bool = ...,
         col_level: Hashable = ...,
         col_fill: Hashable = ...,
+        names: Hashable | Sequence[Hashable] = None,
     ) -> DataFrame | None:
         ...
 
@@ -5607,7 +5613,8 @@ def reset_index(
         inplace: bool = False,
         col_level: Hashable = 0,
         col_fill: Hashable = "",
-    ) -> DataFrame | None:
+        names: Hashable | Sequence[Hashable] = None,
+    ) -> Optional[DataFrame]:
         """
         Reset the index, or a level of it.
 
@@ -5767,14 +5774,20 @@ class    max    type
         if not drop:
             to_insert: Iterable[tuple[Any, Any | None]]
             if isinstance(self.index, MultiIndex):
-                names = [
-                    (n if n is not None else f"level_{i}")
-                    for i, n in enumerate(self.index.names)
-                ]
+                if not names:
+                    names = [
+                        (n if n is not None else f"level_{i}")
+                        for i, n in enumerate(self.index.names)
+                    ]
+                else:
+                    names = names
                 to_insert = zip(self.index.levels, self.index.codes)
             else:
                 default = "index" if "index" not in self else "level_0"
-                names = [default] if self.index.name is None else [self.index.name]
+                if not names:
+                    names = [default] if self.index.name is None else [self.index.name]
+                else:
+                    names = [names]
                 to_insert = ((self.index, None),)
 
             multi_col = isinstance(self.columns, MultiIndex)