diff options
| -rw-r--r-- | lib/sqlalchemy/util/_collections.py | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/sqlalchemy/util/_collections.py b/lib/sqlalchemy/util/_collections.py index 4fb12d71b..db2c21949 100644 --- a/lib/sqlalchemy/util/_collections.py +++ b/lib/sqlalchemy/util/_collections.py @@ -743,15 +743,16 @@ _property_getters = PopulateDict( def unique_list(seq, hashfunc=None): - seen = {} + seen = set() + seen_add = seen.add if not hashfunc: return [x for x in seq if x not in seen - and not seen.__setitem__(x, True)] + and not seen_add(x)] else: return [x for x in seq if hashfunc(x) not in seen - and not seen.__setitem__(hashfunc(x), True)] + and not seen_add(hashfunc(x))] class UniqueAppender(object): |