Filtering sockets

[frusaka]

Not an issue. Just to ask, how do you filter the sockets that appear in the type menu in group nodes?
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[Durman]

sverchok/core/node_group.py

Lines 266 to 270 in d0d5217

	if bpy.app.version >= (3, 2): # in 3.1 this can lead to a crash
	@classmethod
	def valid_socket_type(cls, socket_type: str):
	# https://docs.blender.org/api/master/bpy.types.NodeTree.html#bpy.types.NodeTree.valid_socket_type
	return socket_type in socket_type_names()

[frusaka]

Perfect! Thank you! But don't know why something like
return isinstance(bpy.types.NodeSocket.bl_rna_get_subclass_py(socket_type),SvSocketCommon)
does not work.

[Durman]

I can only guess. Blender does something with Python classes and they loose their hierarchy. So you can make isinstance test with exact class, not with its ancestor.