x
import pandas as pddata = { "name": ["John", "Mary", "John", "Sally", "Mary"], "age": [40, 30, 40, 50, 30], "city": ["Bergen", "Oslo", "Stavanger", "Oslo", "Oslo"]}df = pd.DataFrame(data)s = df.duplicated(subset=["name", "age"])print(s)#This example only compares "name" and "age", and#column 2 is identical to column 0,#column 4 is identical to column 1,0 False 1 False 2 True 3 False 4 True dtype: bool