From 804feea1e88c77a8793561c3bc7a1186ba474267 Mon Sep 17 00:00:00 2001
From: jbrockmendel <jbrockmendel@gmail.com>
Date: Tue, 18 Feb 2020 16:06:34 -0800
Subject: [PATCH 1/2] Fix incorrect _is_scalar_access check in iloc

---
 pandas/core/generic.py  | 4 ++--
 pandas/core/indexing.py | 4 ----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/pandas/core/generic.py b/pandas/core/generic.py
index 579daae2b15c6..ac03843a0e27d 100644
--- a/pandas/core/generic.py
+++ b/pandas/core/generic.py
@@ -3467,13 +3467,13 @@ def _get_item_cache(self, item):
             res._is_copy = self._is_copy
         return res
 
-    def _iget_item_cache(self, item):
+    def _iget_item_cache(self, item: int):
         """Return the cached item, item represents a positional indexer."""
         ax = self._info_axis
         if ax.is_unique:
             lower = self._get_item_cache(ax[item])
         else:
-            lower = self._take_with_is_copy(item, axis=self._info_axis_number)
+            return self._ixs(item, axis=1)
         return lower
 
     def _box_item_values(self, key, values):
diff --git a/pandas/core/indexing.py b/pandas/core/indexing.py
index d3e75d43c6bd7..c366b0621fe93 100755
--- a/pandas/core/indexing.py
+++ b/pandas/core/indexing.py
@@ -1445,10 +1445,6 @@ def _is_scalar_access(self, key: Tuple) -> bool:
             if not is_integer(k):
                 return False
 
-            ax = self.obj.axes[i]
-            if not ax.is_unique:
-                return False
-
         return True
 
     def _validate_integer(self, key: int, axis: int) -> None:

From 7f89d7671703c9f1f1d5080eed8d23480bb425cd Mon Sep 17 00:00:00 2001
From: jbrockmendel <jbrockmendel@gmail.com>
Date: Wed, 19 Feb 2020 17:21:27 -0800
Subject: [PATCH 2/2] add test

---
 pandas/tests/indexing/test_iloc.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/pandas/tests/indexing/test_iloc.py b/pandas/tests/indexing/test_iloc.py
index 500bd1853e9a4..683d4f2605712 100644
--- a/pandas/tests/indexing/test_iloc.py
+++ b/pandas/tests/indexing/test_iloc.py
@@ -47,6 +47,17 @@ def test_iloc_getitem_list_int(self):
 
 class TestiLoc2:
     # TODO: better name, just separating out things that dont rely on base class
+
+    def test_is_scalar_access(self):
+        # GH#32085 index with duplicates doesnt matter for _is_scalar_access
+        index = pd.Index([1, 2, 1])
+        ser = pd.Series(range(3), index=index)
+
+        assert ser.iloc._is_scalar_access((1,))
+
+        df = ser.to_frame()
+        assert df.iloc._is_scalar_access((1, 0,))
+
     def test_iloc_exceeds_bounds(self):
 
         # GH6296