text: from pubsub import *
  from pprint import pprint
  from itertools import islice
  from heapq import merge
  
  post_message('alicja', 'Python is cool!')
  post_message('marcelo', 'Python é foda!')
  post_message('elizete', 'What is Python?')
  post_message('marcelo', 'Jestem silny')
  post_message('marcelo', 'Jeste byke')
  post_message('marcelo', '#python is cool')
  post_message('ala', 'learning #python')
  post_message('trudy', 'monty #python')
  post_message('lilj', 'programming with #python')
  
  follow('marcelo', followed_user='alicja')
  follow('alicja', followed_user='marcelo')
  follow('murilo', followed_user='marcelo')
  
  if __name__ == '__main__':
      # pprint(posts)
      # pprint(user_posts['marcelo'])
  
      # pprint(followers)
  
      # pprint(list(islice(user_posts['marcelo'], 2)))
  
      # pprint(posts_for_user('marcelo', limit=1))
  
      pprint(search('#python'))