exchange a value in a column with another value pandas code example

Example 1: replace one row with another in python

df.loc[(df.Event == 'Dance'),'Event']='Hip-Hop'
df

Example 2: how to change entry in a row based on another columns entry python

import pandas
df = pandas.read_csv("test.csv")
df.loc[df.ID == 103, 'FirstName'] = "Matt"
df.loc[df.ID == 103, 'LastName'] = "Jones"