old_contents: #!/usr/local/bin/python
  # -*- coding: utf-8 -*-
  
  """
  MicroPsi runtime component;
  maintains a set of users, worlds (up to one per user), and agents, and provides an interface to external clients
  """
  
  __author__ = 'joscha'
  __date__ = '10.05.12'
  
  import micropsi_core.nodenet
  import micropsi_core.world
  
  def main():
      pass
  
  if __name__ == '__main__':
      main()
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  """
  MicroPsi runtime component;
  maintains a set of users, worlds (up to one per user), and agents, and provides an interface to external clients
  """
  
  __author__ = 'joscha'
  __date__ = '10.05.12'
  
  import micropsi_core.nodenet
  import micropsi_core.world
  
  def main():
      pass
  
  if __name__ == '__main__':
      main()
  
subject: use python version specified in /usr/bin/env, not /usr/local/bin/python.