print netconf output properly

brian_polling_manager/interface_stats/cli.py

@@ -214,9 +214,14 @@ def _main(router_fqdn: str, app_config_params: dict):
     type=click.BOOL,
     help='just run the netconf query and output the simplified xml, then exit')
 def main(router_fqdn: str, app_config_params: dict, netconf_only: bool):
+
+    # this is expected to be called only when debugging
     if netconf_only:
         _doc = juniper.get_interface_info_ncrpc(router_fqdn)
-        print(etree.tostring(_doc, pretty_print=True))
+        print(etree.tostring(_doc, pretty_print=True).decode('utf-8'))
+        return
+
+    # normal flow ...
     _main(router_fqdn, app_config_params)