how to write in existing csv file in python

create csv file python

# This action requires the 'csv' module
import csv

# The basic usage is to first define the rows of the csv file:
row_list = [["SN", "Name", "Contribution"],
             [1, "Linus Torvalds", "Linux Kernel"],
             [2, "Tim Berners-Lee", "World Wide Web"],
             [3, "Guido van Rossum", "Python Programming"]]

# And then use the following to create the csv file:
with open('protagonist.csv', 'w', newline='') as file:
    writer = csv.writer(file)
    writer.writerows(row_list)
# This will create a csv file in the current directory

Posted by: Guest on February-24-2020

Source

import sys import os import csv listOfLines= [['[email protected]', '[email protected]', '[email protected]', '[email protected]', '[email protected]', '[email protected]']] def write_to_csv(list_of_emails): with open('emails.csv', 'w', newline='') as csvfile: writer = csv.writer(csvfile, delimiter = ',') writer.writerows(list_of_emails) write_to_csv(listOfLines)

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