with open("file.txt", "w") as f: f.write("text")

with open("file.txt") as f: content = f.read()

with open("file.txt", "a") as f: f.write("text")

with open("file.txt", "r") as f: lines = f.readlines()

Path("file.txt").read_text()

Path("file.txt").write_text("text")

json.load(file)

json.dump(data, file)

Практика: файлы 1

Практика: файлы 2