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sqlalchemy/examples/graphs/__init__.py
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Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9
2019-01-06 17:34:50 +00:00

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Python

"""An example of persistence for a directed graph structure. The
graph is stored as a collection of edges, each referencing both a
"lower" and an "upper" node in a table of nodes. Basic persistence
and querying for lower- and upper- neighbors are illustrated::
n2 = Node(2)
n5 = Node(5)
n2.add_neighbor(n5)
print n2.higher_neighbors()
.. autosource::
"""