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change poset's hash to only consider edges #4

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change poset's hash to only consider edges #4

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3 changes: 2 additions & 1 deletion src/c3py/poset.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,8 @@ def __eq__(self, __value: object) -> bool:
return self == __value

def __hash__(self) -> int:
return hash(nx.weisfeiler_lehman_graph_hash(self.G))
# for our purposes, we only care about the set of edges
return hash(frozenset(self.G.edges))

def link(self, a: str, b: str):
self.G.add_edge(a, b)
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