3 ms·

If you cared about type constraints you would not be using Python (or Ruby, or Perl).

• kingkilr 17y ago
  Far more interesting (IMO), would be a constrains based library based on predicates (iterable, hashable, arithmatic-able?)
  • nudded 17y ago
    In ruby you can ensure this by calling responds_to?(:method). So for example to see if some object is iterable, you just check if it responds to each. obj.responds_to?(:each)
    • jrockway 17y ago
      That doesn't guarantee that "each" is actually the right "each".