creating an instance of a union does not name the actual type in the resulting exception

[apexo]

pyxb/pyxb/binding/basis.py

Lines 1295 to 1296 in 14737c2

	def __new__ (self, *args, **kw):
	raise pyxb.LogicError('%s: cannot construct instances of union' % (self.__class__.__name__,))

Because in __new__ the first argument is actually the class (of which an instance is to be constructed), so if we actually want this message to be helpful, it should probably look like this (i.e.: without the .__class__):

raise pyxb.LogicError('%s: cannot construct instances of union' % (self.__name__,)) 

… otherwise the message will always be "type: cannot construct instance of union"