python how to edit the same csv in two functions code example

Example 1: python read csv

>>> import csv
>>> with open('eggs.csv', newline='') as csvfile:
...     spamreader = csv.reader(csvfile, delimiter=' ', quotechar='|')
...     for row in spamreader:
...         print(', '.join(row))
Spam, Spam, Spam, Spam, Spam, Baked Beans
Spam, Lovely Spam, Wonderful Spam

Example 2: how to read a csv file in python

import pandas as pd
df=pd.read_csv('the_file.csv')