no that code is from nagios charm not nrpe charm

full traceback is below

2017-09-01 01:47:50 INFO config-changed Traceback (most recent call last):
2017-09-01 01:47:50 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 339, in <module>
2017-09-01 01:47:50 INFO config-changed     update_config()
2017-09-01 01:47:50 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 231, in update_config
2017-09-01 01:47:50 INFO config-changed     for relunit in self[self.name]:
2017-09-01 01:47:50 INFO config-changed NameError: global name 'self' is not defined
2017-09-01 01:47:50 ERROR juju.worker.uniter.operation runhook.go:107 hook "config-changed" failed: exit status 1
2017-09-01 01:47:56 WARNING juju-log Please use the generic juju-info or the monitors interface
2017-09-01 01:47:56 DEBUG juju-log Writing file /etc/nagios3/conf.d/extra.cfg root:root 444
2017-09-01 01:47:56 INFO config-changed Traceback (most recent call last):
2017-09-01 01:47:56 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 339, in <module>
2017-09-01 01:47:56 INFO config-changed     update_config()
2017-09-01 01:47:56 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 231, in update_config
2017-09-01 01:47:56 INFO config-changed     for relunit in self[self.name]:
2017-09-01 01:47:56 INFO config-changed NameError: global name 'self' is not defined
2017-09-01 01:47:56 ERROR juju.worker.uniter.operation runhook.go:107 hook "config-changed" failed: exit status 1
2017-09-01 01:48:07 WARNING juju-log Please use the generic juju-info or the monitors interface
2017-09-01 01:48:07 DEBUG juju-log Writing file /etc/nagios3/conf.d/extra.cfg root:root 444
2017-09-01 01:48:07 INFO config-changed Traceback (most recent call last):
2017-09-01 01:48:07 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 339, in <module>
2017-09-01 01:48:07 INFO config-changed     update_config()
2017-09-01 01:48:07 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 231, in update_config
2017-09-01 01:48:07 INFO config-changed     for relunit in self[self.name]:
2017-09-01 01:48:07 INFO config-changed NameError: global name 'self' is not defined
2017-09-01 01:48:07 ERROR juju.worker.uniter.operation runhook.go:107 hook "config-changed" failed: exit status 1
2017-09-01 01:48:28 WARNING juju-log Please use the generic juju-info or the monitors interface
2017-09-01 01:48:28 DEBUG juju-log Writing file /etc/nagios3/conf.d/extra.cfg root:root 444
2017-09-01 01:48:28 INFO config-changed Traceback (most recent call last):
2017-09-01 01:48:28 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 339, in <module>
2017-09-01 01:48:28 INFO config-changed     update_config()
2017-09-01 01:48:28 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 231, in update_config
2017-09-01 01:48:28 INFO config-changed     for relunit in self[self.name]:
2017-09-01 01:48:28 INFO config-changed NameError: global name 'self' is not defined
2017-09-01 01:48:29 ERROR juju.worker.uniter.operation runhook.go:107 hook "config-changed" failed: exit status 1
2017-09-01 01:49:09 WARNING juju-log Please use the generic juju-info or the monitors interface
2017-09-01 01:49:09 DEBUG juju-log Writing file /etc/nagios3/conf.d/extra.cfg root:root 444
2017-09-01 01:49:09 INFO config-changed Traceback (most recent call last):
2017-09-01 01:49:09 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 339, in <module>
2017-09-01 01:49:09 INFO config-changed     update_config()
2017-09-01 01:49:09 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 231, in update_config
2017-09-01 01:49:09 INFO config-changed     for relunit in self[self.name]:
2017-09-01 01:49:09 INFO config-changed NameError: global name 'self' is not defined
2017-09-01 01:49:09 ERROR juju.worker.uniter.operation runhook.go:107 hook "config-changed" failed: exit status 1
2017-09-01 01:50:28 WARNING juju-log Please use the generic juju-info or the monitors interface
2017-09-01 01:50:28 DEBUG juju-log Writing file /etc/nagios3/conf.d/extra.cfg root:root 444
2017-09-01 01:50:29 INFO config-changed Traceback (most recent call last):
2017-09-01 01:50:29 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 339, in <module>
2017-09-01 01:50:29 INFO config-changed     update_config()
2017-09-01 01:50:29 INFO config-changed   File "/var/lib/juju/agents/unit-nagios-0/charm/hooks/config-changed", line 231, in update_config
2017-09-01 01:50:29 INFO config-changed     for relunit in self[self.name]:
2017-09-01 01:50:29 INFO config-changed NameError: global name 'self' is not defined
2017-09-01 01:50:29 ERROR juju.worker.uniter.operation runhook.go:107 hook "config-changed" failed: exit status 1