title: Even using Manager.list() the values are not being appended to the list using multiprocessing pool
body: <p>As can see in the code below, I'm generating a multiprocessing with manager and list comprehension to handle the pool:</p>
  <pre><code>import multiprocessing
  
  def foo(name,archive):
      print('hello ', name)
      archive.append('hello ', name)
  
  def main():
      max_process = multiprocessing.cpu_count()-1 or 1
      pool = multiprocessing.Pool(max_process)
      manager = multiprocessing.Manager()
  
      archive = manager.list()
  
      [pool.apply_async(foo, args=[name,archive]) for name in range(0, 10)]
      pool.close()
      pool.join()
      print(archive)
  
  if __name__ == '__main__':
      main()
  </code></pre>
  <p>But still the attachments are not being placed on the list designed by the manager:</p>
  <pre><code>hello  0
  hello  4
  hello  5
  hello  7
  hello  1
  hello  6
  hello  8
  hello  3
  hello  9
  hello  2
  []
  </code></pre>
  <p>How should I go about solving this problem?</p>