Python Programming - Reading and Writing Files

open("existing_file.txt", "a").write("new content")

open("existing_file.txt", "w").write("new content")

append_content("existing_file.txt", "new content")

with open("existing_file.txt", "a") as file:
    file.append("new content")

with open("log.txt", "r") as file:
    lines = file.readlines()
    for line in lines[-5:]:
        print(line)

last_five_lines("log.txt")

with open("log.txt", "r") as file:
    print(file.read()[-5:])

lines = open("log.txt").readlines()[-5:]
for line in lines:
    print(line)

if not is_empty("data.csv"):

if get_size("data.csv") == 0:

if file_empty("data.csv"):

if os.path.getsize("data.csv") == 0: