demo_ref_file_writelines.py:
f = open("demofile3.txt", "a") f.writelines(["See you soon!", "Over and out."]) f.close() #open and read the file after the appending: f = open("demofile3.txt", "r") print(f.read())
C:\Users\My Name>python demo_file_writelines.py
Hello! Welcome to demofile2.txt
This file is for testing purposes.
Good Luck!See you soon!Over and out.