BUG: ArrayManager changes Series.to_frame() from view to copy #42512
Description
ser = pd.Series(range(5)) df = ser.to_frame() ser._mgr.arrays[0][0] = 10 >>> df.iloc[0, 0] 0 # <-- ArrayManager 10 # <-- BlockManager {{ message }}
ser = pd.Series(range(5)) df = ser.to_frame() ser._mgr.arrays[0][0] = 10 >>> df.iloc[0, 0] 0 # <-- ArrayManager 10 # <-- BlockManager