code sample for pandas-dev#45554

Author: simonjayhawkins

bisect/45554.py

@@ -0,0 +1,14 @@
+# BUG: Parameter check_flags is ignored in assert_frame_equal #45554
+
+import pandas as pd
+
+print(pd.__version__)
+
+import pandas._testing as tm
+
+df1 = pd.DataFrame([[1, 2], [3, 4]])
+df1.flags.allows_duplicate_labels = False
+df2 = pd.DataFrame([[1, 2], [3, 4]])
+df2.flags.allows_duplicate_labels = True
+
+tm.assert_frame_equal(df1, df2, check_flags=False)