api/4/vms returns a dict, thus breaking make test-restful #2918

glances/plugins/vms/__init__.py

@@ -15,7 +15,7 @@ from glances.globals import iteritems
 from glances.logger import logger
 from glances.plugins.plugin.model import GlancesPluginModel
 from glances.plugins.vms.engines import VmsExtension
-from glances.plugins.vms.engines.multipass import VmExtension, import_multipass_error_tag
+from glances.plugins.vms.engines.multipass import VmExtension
 from glances.processes import glances_processes
 from glances.processes import sort_stats as sort_stats_processes
 
@@ -109,8 +109,7 @@ class PluginModel(GlancesPluginModel):
         self.watchers: Dict[str, VmsExtension] = {}
 
         # Init the Multipass API
-        if not import_multipass_error_tag:
-            self.watchers['multipass'] = VmExtension()
+        self.watchers['multipass'] = VmExtension()
 
         # Sort key
         self.sort_key = None

glances/plugins/vms/engines/multipass.py

@@ -30,9 +30,6 @@ class VmExtension:
     CONTAINER_ACTIVE_STATUS = ['running']
 
     def __init__(self):
-        if import_multipass_error_tag:
-            raise Exception(f"Multipass binary ({MULTIPASS_PATH}) is mandatory to get VM stats")
-
         self.ext_name = "Multipass (Vm)"
 
     def update_version(self):
@@ -95,6 +92,11 @@ class VmExtension:
 
     def update(self, all_tag) -> Tuple[Dict, List[Dict]]:
         """Update Vm stats using the input method."""
+        # Can not run multipass on this system then...
+        if import_multipass_error_tag:
+            return {}, []
+
+        # Get the stats from the system
         version_stats = self.update_version()
 
         # TODO: manage all_tag option