def aug_assign(lhs, op, rhs):
 if ((op + '=') not in Relational.ValidRelationOperator):
  raise ValueError(('Unrecognized operator %s' % op))
 return Relational.ValidRelationOperator[(op + '=')](lhs, rhs)

def aug_assign ( lhs , op , rhs ) : if ( ( op + '=' ) not in Relational . ValidRelationOperator ) : raise ValueError ( ( 'Unrecognized operator %s' % op ) ) return Relational . ValidRelationOperator [ ( op + '=' ) ] ( lhs , rhs )
create lhs op= rhs .