From 0edb375b9e3f07b595fbd9adb346c9a85c8af43c Mon Sep 17 00:00:00 2001
From: taytzehao <jtth95@gmail.com>
Date: Tue, 15 Aug 2023 00:03:40 +0800
Subject: [PATCH] refactor grouper __iter__

---
 pandas/core/groupby/ops.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/pandas/core/groupby/ops.py b/pandas/core/groupby/ops.py
index 3c4a22d009406..71525c8c1a223 100644
--- a/pandas/core/groupby/ops.py
+++ b/pandas/core/groupby/ops.py
@@ -996,9 +996,6 @@ def groups(self):
         }
         return result
 
-    def __iter__(self) -> Iterator[Hashable]:
-        return iter(self.groupings[0].grouping_vector)
-
     @property
     def nkeys(self) -> int:
         # still matches len(self.groupings), but we can hard-code