Write Python list as a row to CSV

csv.py

#!/usr/bin/env python3
import csv

def write_row_to_csv(filename, row_data_as_list, file_mode):
    with open(filename, file_mode, newline='') as csvfile:
        # creating a csv writer object
        csvwriter = csv.writer(csvfile, delimiter=',', quotechar='"', quoting=csv.QUOTE_ALL)

        # writing the data rows  
        csvwriter.writerow(row_data_as_list)

header = ["Name","Country", "Age", "Gender"]

data = [
    ["Tom", "USA", "33", "M"],
    ["Penelope", "USA", "31", "F"]
]

#################
# Sample usage: #
#################

write_row_to_csv("test-file.csv", header, "w")

write_row_to_csv("test-file.csv", data[0], "a")

write_row_to_csv("test-file.csv", data[1], "a")