how to make a header row in a csv file in python code example

Example 1: how to add header in csv file in python

#header in csv file
import pandas as pd
import csv
df = pd.read_csv("file.csv", header=None)
df.to_csv("file.csv", header=["SEQUENCE"], index=False)#header added
df = pd.read_csv("file.csv")
df

Example 2: how to add header in csv file in python

from pandas import read_csv

   df = read_csv('test.csv')
   df.columns = ['a', 'b']
   df.to_csv('test_2.csv')