If a resource class cannot be found for the resource_type, return a R…

…esource object and warns (do not raise)
pyvisa · Aug 12, 2015 · 987bcf3 · 987bcf3
1 parent 786312e
commit 987bcf3
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/pyvisa/highlevel.py b/pyvisa/highlevel.py
@@ -1625,7 +1625,8 @@ def open_resource(self, resource_name,
             try:
                 resource_pyclass = self._resource_classes[(info.interface_type, info.resource_class)]
             except KeyError:
-                raise ValueError('There is no class defined for %r' % ((info.interface_type, info.resource_class),))
+                resource_pyclass = self._resource_classes[(constants.InterfaceType.unknown, '')]
+                logger.warning('There is no class defined for %r. Using Resource', (info.interface_type, info.resource_class))
 
         res = resource_pyclass(self, resource_name)
         for key in kwargs.keys():