Opened 7 years ago

Last modified 7 years ago

#16019 closed defect

Connected components for immutable digraphs does not work — at Initial Version

Reported by: tscrim Owned by: tscrim
Priority: major Milestone: sage-6.2
Component: graph theory Keywords:
Cc: ncohen Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

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Description

sage: G = DiGraph([[1,2]))
sage: G.conencted_components()
[[1, 2]]
sage: G.copy(immutable=True).connected_components()
...
AttributeError: 'NoneType' object has no attribute 'out_neighbors'

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