code sample for pandas-dev#45601

Author: simonjayhawkins

bisect/45601.py

@@ -0,0 +1,13 @@
+# BUG: Replacing pd.NA by None has no effect #45601
+
+import pandas as pd
+
+print(pd.__version__)
+
+df = pd.DataFrame({"value": [42, None]}).astype({"value": "Int64"})
+
+result = df.replace({pd.NA: None})
+print(result)
+
+expected = pd.DataFrame({"value": [42, None]}, dtype=object)
+pd.testing.assert_frame_equal(result, expected)