def resizer(length):
if length & 7:
raise SizeofError("size must be a multiple of 8", length)
return length >> 3
def _sizeof(self, context):
raise SizeofError("can't calculate size")
def _sizeof(self, context):
# return self.lengthfield._sizeof(None) + sum(self.subcon._sizeof(element) for element in context)
raise SizeofError("cannot calculate size")
