code: def equal_set(self, a, b):
          "See if a and b have the same elements"
          if len(a) != len(b):
              return 0
          if a == b:
              return 1
          return self.subset(a, b) and self.subset(b, af equal_set(self, a, b):
          "See if a and b have the same elements"
          if len(a) != len(b):
              return 0
          if a == b:
              return 1
          return self.subset(a, b) and self.subset(b, a)
docs: See if a and b have the same elements