How to modify Dataframe column names in python

This article will introduce you to two methods of modifying Dataframe column names in python. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

First create a new Dataframe

import pandas as pd

df = pd.DataFrame({'a':[1,2,3],'b':[1,2,3]})

as follows:
a b
0 1 1
1 2 2
2 3 31 , modify column name a and b to be A and B.

df.columns = ['A','B']

2. Only modify column name a to A

df.rename(columns={'a':'A'})

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