BUG: Fix return statement in Index.get_level_values() for handling level 0 & -1

vgnshiyer · vgnshiyer · commit 46e166b71ceb · 2025-09-21T14:49:44.000-07:00
diff --git a/pandas/core/indexes/base.py b/pandas/core/indexes/base.py
@@ -2100,6 +2100,7 @@ def _validate_index_level(self, level) -> None:
                 raise IndexError(
                     f"Too many levels: Index has only 1 level, not {level + 1}"
                 )
+            return
         mismatch_error_msg = (
             f"Requested level ({level}) does not match index name ({self.name})"
         )

Original file line number	Diff line number	Diff line change
`@@ -2100,6 +2100,7 @@ def _validate_index_level(self, level) -> None:`
`2100`	`2100`	`raise IndexError(`
`2101`	`2101`	`f"Too many levels: Index has only 1 level, not {level + 1}"`
`2102`	`2102`	`)`
	`2103`	`+ return`
`2103`	`2104`	`mismatch_error_msg = (`
`2104`	`2105`	`f"Requested level ({level}) does not match index name ({self.name})"`
`2105`	`2106`	`)`