added first ACS ASS command

tmtccli.py

@@ -27,6 +27,7 @@ limitations under the License.
 @author     R. Mueller
 """
 import sys
+import traceback
 
 try:
     from tmtccmd.runner import (
@@ -39,12 +40,9 @@ try:
 except ImportError as error:
     run_tmtc_commander = None
     initialize_tmtc_commander = None
-    print(error)
+    tb = traceback.format_exc()
+    print(tb)
     print("Python tmtccmd submodule could not be imported")
-    print(
-        'Install with "cd tmtccmd && python3 -m pip '
-        'install -e .[gui]" for interactive installation'
-    )
     sys.exit(1)
 
 try: