how to move through dataset column using a for loop in python code example

Example 1: iterating over the two ranges simultaneously and saving it in database

from .models import userData as us
import pandas as pd

def enterData(request):
    data=pd.read_csv(r"abc.csv",encoding='ISO-8859-1')
    username=data['userName']
    address=data['address']
    for a, b in zip(username, address):
        db=ud(userName=a,Address=a)
        db.save()

Example 2: pandas dataframe for loop begin end index

for i in range(len(sequence)):
    print (sequence[i])