Make an ISO the easy way

make_iso.py

import os
import os.path
import shutil
files = []
while True:
  print("[1]: Add files to staging area.")
  print("[2]: Generate ISO.")
  print("[3]: Abort.")
  choice = input("> ")
  if choice == '1':
    File = input("What file do you want? ")
    if os.path.exists(File):
      files.append(File)
    else:
      print(f"{File}: No such file or directory")
  elif choice == '2':
    os.mkdir('temp')
    for item in files:
      shutil.move(item, 'temp')
    os.system('genisoimage -o data.iso temp')
  elif choice == '3':break
  else:
    print("Not found")

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