code: def equal(a, b):
      """Returns True iff 'a' contains the same elements as 'b', irrespective of their order.
      # TODO: Python 2.4 has a proper set class.
      """
      assert is_iterable(a)
      assert is_iterable(b)
      return contains(a, b) and contains(b, a)
  
imports: from b2.util import is_iterable
  from .utility import to_seq
label_desc: Use image node_id 4 for calling a global function with example usage: equal(a, b) and returns: unknown