Paul Rubin wrote: > Peter Hansen <[EMAIL PROTECTED]> writes: >> > You want something like >> > self.assertRaises(AttributeError, lambda: self.combat.value = 1) >> >> Or, combining the two responses and avoiding the lambda: >> >> self.assertRaises(AttributeError, setattr, self.combat, 'value', 1) >> >> Hmm... this might be a case where the lambda form is actually the >> more readable one... > > Yes, assignment expressions could make code more readable, if Python > supported them. >
An assignment expression, if such a thing existed wouldn't help here. The point being that the expression must be evaluated inside the exception handler in assertRaises, so you either need to delay the evaluation with a lambda, or by passing the function and arguments in separately. If you had an assignment expression it would be roughly equivalent to: self.assertRaises(AttributeError, setattr(self.combat, 'value', 1)) which will throw the AttributeError instead of passing the test. -- http://mail.python.org/mailman/listinfo/python-list
