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How to rename DataFrame columns name in pandas?

import pandas as pd

employees = pd.DataFrame({
    'EmpCode': ['Emp001', 'Emp00'],
    'Name': ['John Doe', 'William Spark'],
    'Occupation': ['Chemist', 'Statistician'],
    'Date Of Join': ['2018-01-25', '2018-01-26'],
    'Age': [23, 24]})

employees.columns = ['EmpCode', 'EmpName', 'EmpOccupation', 'EmpDOJ', 'EmpAge']

print(employees)

C:\python\pandas examples>python example4.py
   EmpCode     EmpName EmpOccupation         EmpDOJ        EmpAge
0       23  2018-01-25        Emp001       John Doe       Chemist
1       24  2018-01-26         Emp00  William Spark  Statistician
 
C:\python\pandas examples>