file handle 12 length of line in text file.py

import os
import time

file_name = input("Enter the file name to create:- ")

print(file_name)


def write_to_file(file_name):

    if os.path.exists(file_name):
        print(f"Error: {file_name} already exists.")
        return

    with open(file_name, "a") as F:

        while True:
            text = input("enter any text to add in the file:- ")
            F.write(f"{text}\n")
            choice = input("Do you want to enter more, y/n").lower()
            if choice == "n":
                break


def longlines():

    with open(file_name, encoding="utf-8") as F:
        lines = F.readlines()
        lines_less_than_50 = list(filter(lambda line: len(line) < 50, lines))

        if not lines_less_than_50:
            print("There is no line which is less than 50")
        else:
            for i in lines_less_than_50:
                print(i, end="\t")


if __name__ == "__main__":
    write_to_file(file_name)
    time.sleep(1)
    longlines()