added back hook function

tmtc/config/hook_implementation.py

@@ -51,8 +51,8 @@ class FsfwHookBase(TmTcHookBase):
         pack_service_queue_user(service=service, op_code=op_code, service_queue=service_queue)
 
     def tm_user_factory_hook(self, raw_tm_packet: bytearray) -> Optional[PusTelemetry]:
-        from pus_tm.factory_hook import tm_user_factory_hook
-        return tm_user_factory_hook(raw_tm_packet=raw_tm_packet)
+         from pus_tm.factory_hook import tm_user_factory_hook
+         return tm_user_factory_hook(raw_tm_packet=raw_tm_packet)
 
     def get_object_ids(self) -> Dict[bytes, list]:
         from config.object_ids import get_object_ids

tmtc/tmtc_client_cli.py

@@ -26,6 +26,7 @@ limitations under the License.
 
 @author     R. Mueller
 """
+import sys
 from config.hook_implementation import FsfwHookBase
 try:
     from tmtccmd.runner import run_tmtc_commander, initialize_tmtc_commander
@@ -34,6 +35,7 @@ except ImportError:
     initialize_tmtc_commander = None
     print("Python tmtccmd submodule not installed")
     print("Install with \"cd tmtccmd && python3 -m pip install -e .\" for interactive installation")
+    sys.exit(0)
 
 
 def main():