import pandas as pd
data = {
"name": ["Sally", "Mary", "John", "Monica"],
"age": [50, 40, 30, 40],
"qualified": [True, False, False, False]
}
df = pd.DataFrame(data)
newdf = df.set_index('name')
print(newdf)
age qualified name Sally 50 True Mary 40 False John 30 False Monica 40 False