Rename Column in DataFrame

import pandas as pd

data = ['Vachitaya aapuuuuuuuuu','Sing in the rain' ,'Great power comes wih great responsibility']  
df = pd.DataFrame(data, columns = ['Sent'])
df

df.columns = ['Sentence']

df.head()

df.rename(columns={'Sentence':'my_sent'},inplace=True)

df.head()