Examples
import numpy as np import pandas as pd
s = pd.Series([2, 3, 4, 5]) s
0 2 1 3 2 4 3 5 dtype: int64
s.add_suffix('_item')
df = pd.DataFrame({'X': [2, 3, 4, 5], 'Y': [4, 5, 6, 7]}) df
df.add_suffix('_col')