code sample for pandas-dev#35565

Author: simonjayhawkins

bisect/35565.py

@@ -0,0 +1,11 @@
+import pandas as pd
+
+print(pd.__version__)
+
+x = pd.DataFrame([["foo", "bar"], [1, None]])
+y = x[1].copy()
+
+result = x.isin(y)
+print(result)
+
+assert result[1].all()