Rename Columns in Pandas DataFrame

Code description

This code snippet provides a simple approach to rename column names in a Panda DataFrame. It directly sets DataFrame.columns property.

Output:

Code snippet

    import pandas as pd
    
    data = {}
    data['A'] = [1,2,3,4,5]
    data['B'] = ['A','B','C','D','E']
    df = pd.DataFrame(data)
    print(df)
    
    # Rename columns
    df.columns = ['a','b']
    print(df)