equal
deleted
inserted
replaced
2640 self._list.reverse() |
2640 self._list.reverse() |
2641 else: |
2641 else: |
2642 self._ascending = not self._ascending |
2642 self._ascending = not self._ascending |
2643 |
2643 |
2644 def first(self): |
2644 def first(self): |
2645 if self: |
2645 for x in self: |
2646 return self._list.first() |
2646 return x |
2647 return None |
2647 return None |
2648 |
2648 |
2649 def last(self): |
2649 def last(self): |
2650 if self: |
2650 self.reverse() |
2651 return self._list.last() |
2651 val = self.first() |
2652 return None |
2652 self.reverse() |
|
2653 return val |
2653 |
2654 |
2654 class generatorset(abstractsmartset): |
2655 class generatorset(abstractsmartset): |
2655 """Wrap a generator for lazy iteration |
2656 """Wrap a generator for lazy iteration |
2656 |
2657 |
2657 Wrapper structure for generators that provides lazy membership and can |
2658 Wrapper structure for generators that provides lazy membership and can |