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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def program_rtr(self, args, rout_id, namespace=None):
 """Execute the command against the namespace. """

        if namespace is None:
            namespace = self.find_rtr_namespace(rout_id)
        if namespace is None:
            LOG.error("Unable to find namespace for router %s", rout_id)
            return False
        final_args = ['ip', 'netns', 'exec', namespace] + args
        try:
            utils.execute(final_args, root_helper=self.root_helper)
        except Exception as e:
            LOG.error("Unable to execute %(cmd)s. "
                      "Exception: %(exception)s",
                      {'cmd': final_args, 'exception': e})
            return False
        return True