code: def _print_installed_apps(self, controller):
          
          print('\nInstalled Sprockets %s Apps\n' % controller.upper())
          print("{0:<25} {1:>25}".format('Name', 'Module'))
          print(string.ljust('', 51, '-'))
          for app in self._get_applications(controller):
              print('{0:<25} {1:>25}'.format(app.name, '(%s)' % app.module_name))
          print('')
docs: Print out a list of installed sprockets applications
  
          :param str controller: The name of the controller to get apps for