x
import pandas as pddata = { "age": [50, 40, 30, 40, 20, 10, 30], "qualified": [True, False, False, False, False, True, True]}df = pd.DataFrame(data)newdf = df.add_suffix("_data")print(newdf)age_data qualified_data 0 50 True 1 40 False 2 30 False 3 40 False 4 20 False 5 10 True 6 30 True