Merge branch '9336-df-mix-dt64-tests' of github.com:jcontesti/pandas into 9336-df-mix-dt64-tests

Author: jcontesti

pandas/tests/indexing/test_loc.py

@@ -444,6 +444,13 @@ def test_loc_setitem_consistency(self):
         expected = DataFrame({'date': Series(['string'])})
         tm.assert_frame_equal(df, expected)
 
+        # GH 9336
+        expected = DataFrame({'date': [1, 'a', 'b']})
+        df = DataFrame({'date': Series(pd.NaT, range(3))})
+        df.loc[0, 'date'] = 1
+        df.loc[1:2, 'date'] = 'a', 'b'
+        tm.assert_frame_equal(df, expected)
+
     def test_loc_setitem_consistency_empty(self):
         # empty (essentially noops)
         expected = DataFrame(columns=['x', 'y'])