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Diffstat (limited to 'lib/sqlalchemy/util/topological.py')
| -rw-r--r-- | lib/sqlalchemy/util/topological.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sqlalchemy/util/topological.py b/lib/sqlalchemy/util/topological.py index 6f895e7b7..de3dfd0ae 100644 --- a/lib/sqlalchemy/util/topological.py +++ b/lib/sqlalchemy/util/topological.py @@ -49,7 +49,8 @@ def sort(tuples, allitems): def find_cycles(tuples, allitems): - # straight from gvr with some mods + # adapted from: + # http://neopythonic.blogspot.com/2009/01/detecting-cycles-in-directed-graph.html edges = util.defaultdict(set) for parent, child in tuples: |