old_contents: """
      instabot example
  
      Workflow:
          Welcome message for new followers.
  """
  
  import argparse
  import os
  import sys
  
  from tqdm import tqdm
  
  sys.path.append(os.path.join(sys.path[0], '../'))
  from instabot import Bot
  
  NOTIFIED_USERS_PATH = 'notified_users.txt'
  
  MESSAGE = 'Thank you for a script, sudoguy!'
  
  parser = argparse.ArgumentParser(add_help=True)
  parser.add_argument('-u', type=str, help="username")
  parser.add_argument('-p', type=str, help="password")
  parser.add_argument('-proxy', type=str, help="proxy")
  parser.add_argument('-users', type=str, nargs='?', help='a path to already notified users')
  parser.add_argument('-message', type=str, nargs='?', help='message text')
  args = parser.parse_args()
  
  bot = Bot()
  bot.login(username=args.u, password=args.p,
            proxy=args.proxy)
  
  # Use custom message from args if exist
  if args.message:
      MESSAGE = args.message
  
  # Check on existed file with notified users
  if not bot.check_if_file_exists(NOTIFIED_USERS_PATH):
      followers = bot.followers
      followers = map(str, followers)
      followers_string = '\n'.join(followers)
      with open(NOTIFIED_USERS_PATH, 'w') as users_file:
          users_file.write(followers_string)
      print(
          'All followers saved in file {users_path}.\n'
          'In a next time, for all new followers script will send messages.'.format(
              users_path=NOTIFIED_USERS_PATH
          )
      )
      exit(0)
  
  notified_users = bot.read_list_from_file(NOTIFIED_USERS_PATH)
  print('Read saved list of notified users. Count: {count}'.format(
      count=len(notified_users)
  ))
  all_followers = bot.followers
  print('Amount of all followers is {count}'.format(
      count=len(all_followers)
  ))
  
  new_followers = set(all_followers) - set(notified_users)
  
  if not new_followers:
      print('New followers not found')
      exit()
  
  print('Found new followers. Count: {count}'.format(
      count=len(new_followers)
  ))
  
  new_notified_users = []
  
  for follower in tqdm(new_followers):
      if bot.send_message(MESSAGE, follower):
          new_notified_users.append(follower)
  
  if new_notified_users:
      print('Updating notified users list')
      with open(NOTIFIED_USERS_PATH, 'a') as fo:
          new_notified_users_string = '\n'.join(new_notified_users)
          fo.write('\n{users}'.format(
              users=new_notified_users_string
          ))
  
new_contents: """
      instabot example
  
      Workflow:
          Welcome message for new followers.
  """
  
  import argparse
  import os
  import sys
  
  from tqdm import tqdm
  
  sys.path.append(os.path.join(sys.path[0], '../'))
  from instabot import Bot
  from instabot.utils import file
  
  NOTIFIED_USERS_PATH = 'notified_users.txt'
  
  MESSAGE = 'Thank you for a script, sudoguy!'
  
  parser = argparse.ArgumentParser(add_help=True)
  parser.add_argument('-u', type=str, help="username")
  parser.add_argument('-p', type=str, help="password")
  parser.add_argument('-proxy', type=str, help="proxy")
  parser.add_argument('-users', type=str, nargs='?', help='a path to already notified users')
  parser.add_argument('-message', type=str, nargs='?', help='message text')
  args = parser.parse_args()
  
  bot = Bot()
  bot.login(username=args.u, password=args.p,
            proxy=args.proxy)
  
  # Use custom message from args if exist
  if args.message:
      MESSAGE = args.message
  
  # Check on existed file with notified users
  notified_users = file(NOTIFIED_USERS_PATH)
  if not notified_users.list:
      notified_users.save_list(bot.followers)
      print(
          'All followers saved in file {users_path}.\n'
          'In a next time, for all new followers script will send messages.'.format(
              users_path=NOTIFIED_USERS_PATH
          )
      )
      exit(0)
  
  print('Read saved list of notified users. Count: {count}'.format(
      count=len(notified_users)
  ))
  all_followers = bot.followers
  print('Amount of all followers is {count}'.format(
      count=len(all_followers)
  ))
  
  new_followers = set(all_followers) - set(notified_users.list)
  
  if not new_followers:
      print('New followers not found')
      exit()
  
  print('Found new followers. Count: {count}'.format(
      count=len(new_followers)
  ))
  
  for follower in tqdm(new_followers):
      if bot.send_message(MESSAGE, follower):
          notified_users.append(follower)
  
subject: Simplify welcome_message script