@constraint def unique_names(self): names: Set[str] = set() for base in self.extending_sections: for quantity in base.quantities + base.sub_sections: for alias in quantity.aliases: names.add(alias) names.add(quantity.name) for def_list in [self.quantities, self.sub_sections]: for definition in def_list: assert definition.name not in names, 'All names in a section must be unique. ' \ 'Name %s of %s in %s already exists in %s.' % (definition.name, definition, definition.m_parent, self) names.add(definition.name) for alias in definition.aliases: assert alias not in names, 'All names (incl. aliases) in a section must be unique. ' \ 'Alias %s of %s in %s already exists in %s.' % (alias, definition, definition.m_parent, self) names.add(alias)