code for pandas-dev#44864

Author: simonjayhawkins

bisect/44864.py

@@ -0,0 +1,12 @@
+# BUG: inconsistency in dtype of replace() #44864
+
+import pandas as pd
+
+print(pd.__version__)
+s = pd.Series(["0"])
+res1 = s.replace(to_replace="0", value=1, regex=False)  # shows int64
+print(res1)
+res2 = s.replace(to_replace="0", value=1, regex=True)  # shows object
+print(res2)
+
+assert res2.dtype == "int64"