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Diffstat (limited to 'lib/sqlalchemy/topological.py')
| -rw-r--r-- | lib/sqlalchemy/topological.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/sqlalchemy/topological.py b/lib/sqlalchemy/topological.py index d8ed550b0..bd8b45f95 100644 --- a/lib/sqlalchemy/topological.py +++ b/lib/sqlalchemy/topological.py @@ -166,6 +166,7 @@ class _EdgeCollection(object): def _sort(tuples, allitems, allow_cycles=False, ignore_self_cycles=False): nodes = {} edges = _EdgeCollection() + for item in list(allitems) + [t[0] for t in tuples] + [t[1] for t in tuples]: if id(item) not in nodes: node = _Node(item) |