diff options
| -rw-r--r-- | Lib/sets.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/sets.py b/Lib/sets.py index e88e845c1f..10138fca5e 100644 --- a/Lib/sets.py +++ b/Lib/sets.py @@ -154,7 +154,8 @@ class BaseSet(object): """ if not isinstance(other, BaseSet): return NotImplemented - result = self.__class__(self._data) + result = self.__class__() + result._data = self._data.copy() result._data.update(other._data) return result |