[Pandas] Lowercase/uppercase the value in a field

Import Data

import pandas as pd
 
df = pd.DataFrame([['liver','E',89,21],
                   ['Arry','C',36,37],
                   ['Ack','A',57,60],
                   ['Eorge','C',93,96],
                   ['Oah','D',65,49]
                  ], 
                   columns = ['name','team','Q1','Q2'])

df

Capitalize all the values ​​in the name field in the df table

df['name'] = df['name'].str.upper()

processed df

Lowercase the values ​​in the name field in the df table 

df['name'] = df['name'].str.lower()

processed df