TypeError when trying to append openconfig ethernet interface instance to interfaces

[matejv]

I have converted openconfig yang models with pyangbind.

Now trying to append an ethernet interface to a list of interfaces I get this error:

>>> from oc.interfaces import interfaces
>>> from oc.interfaces.interface import interface
>>> myifaces = interfaces()
>>> this_interface = interface()
>>> this_interface.name = "TenGigabitEthernet1/1"
>>> this_interface.config.type = "ethernetCsmacd"
>>> this_interface.ethernet.switched_vlan.config.interface_mode = "TRUNK"
>>> this_interface.ethernet.switched_vlan.config.trunk_vlans.append(2)
>>> myifaces.interface.append(this_interface)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-9-45bde45282d4> in <module>()
----> 1 myifaces.interface.append(this_interface)

/opt/virtual_environments/oc/lib/python2.7/site-packages/pyangbind/lib/yangtypes.pyc in append(self, *args, **kwargs)
   1070         raise AttributeError("%s object has no attribute append" % base_type)
   1071       self._set()
-> 1072       super(YANGBaseClass, self).append(*args, **kwargs)
   1073 
   1074     def pop(self, *args, **kwargs):

/opt/virtual_environments/oc/lib/python2.7/site-packages/pyangbind/lib/yangtypes.pyc in append(self, obj)
    714 
    715     def append(self, obj):
--> 716       self.__set(_k=self._extract_key(obj), _v=obj)
    717 
    718     def _new_item(self):

/opt/virtual_environments/oc/lib/python2.7/site-packages/pyangbind/lib/yangtypes.pyc in __set(self, *args, **kwargs)
    644                                 extmethods=self._parent._extmethods,
    645                                 load=True,
--> 646                                 extensions=extensions)
    647 
    648           if keydict is not None:

/opt/virtual_environments/oc/lib/python2.7/site-packages/pyangbind/lib/yangtypes.pyc in YANGDynClass(*args, **kwargs)
   1131       return self._cpresent
   1132 
-> 1133   return YANGBaseClass(*args, **kwargs)
   1134 
   1135 

/opt/virtual_environments/oc/lib/python2.7/site-packages/pyangbind/lib/yangtypes.pyc in __init__(self, *args, **kwargs)
   1008       except Exception as e:
   1009         raise TypeError("couldn't generate dynamic type -> %s -> %s"
-> 1010                         % (type(e), e))
   1011 
   1012     def _changed(self):

TypeError: couldn't generate dynamic type -> <type 'exceptions.ValueError'> -> {'error-string': 'ethernet must be of a type compatible with container', 'generated-type': 'YANGDynClass(base=ethernet.ethernet, is_container=\'container\', yang_name="ethernet", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions=None, namespace=\'http://openconfig.net/yang/interfaces/ethernet\', defining_module=\'openconfig-if-ethernet\', yang_type=\'container\', is_config=True)', 'defined-type': 'container'}

This only happens with interfaces that have trunk_vlans attribute set. If trunk_vlans is not set, stuff seems to work fine.