Run
import pandas as pd #initialize a dataframe df = pd.DataFrame( [[21, 'Amol', 72, 67], [23, 'Lini', 78, 69], [32, 'Kiku', 74, 56], [52, 'Ajit', 54, 76]], columns=['rollno', 'name', 'physics', 'botony']) print('DataFrame with default index\n', df) #set column as index df = df.set_index('rollno') print('\nDataFrame with column as index\n',df)
Output