code: def _py24_25_compat(self):
          
          if sys.version_info < (2, 6):
              # import_module() is used to avoid dep scanner.
              os_fork = import_module('mitogen.os_fork')
              mitogen.os_fork._notice_broker_or_pool(self)
docs: Python 2.4/2.5 have grave difficulties with threads/fork. We
          mandatorily quiesce all running threads during fork using a
          monkey-patch there.