add parameter immutable to graph generators in families.py (part 5)#41593
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vbraun merged 7 commits intosagemath:developfrom Feb 25, 2026
Merged
add parameter immutable to graph generators in families.py (part 5)#41593vbraun merged 7 commits intosagemath:developfrom
vbraun merged 7 commits intosagemath:developfrom
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sagemathgh-41593: add parameter immutable to graph generators in families.py (part 5) Following discussions in sagemath#39177, we add the option to return immutable graphs to some generators in `src/sage/graphs/generators/families.py`. - `PasechnikGraph`, `SquaredSkewHadamardMatrixGraph`, `SwitchedSquaredSkewHadamardMatrixGraph`, `HanoiTowerGraph`, `line_graph_forbidden_subgraphs`, `p2_forbidden_minors` ### 📝 Checklist <!-- Put an `x` in all the boxes that apply. --> - [x] The title is concise and informative. - [x] The description explains in detail what this PR is about. - [x] I have linked a relevant issue or discussion. - [ ] I have created tests covering the changes. - [ ] I have updated the documentation and checked the documentation preview. ### ⌛ Dependencies <!-- List all open PRs that this PR logically depends on. For example, --> <!-- - sagemath#12345: short description why this is a dependency --> <!-- - sagemath#34567: ... --> URL: sagemath#41593 Reported by: David Coudert Reviewer(s): Frédéric Chapoton
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Feb 20, 2026
sagemathgh-41593: add parameter immutable to graph generators in families.py (part 5) Following discussions in sagemath#39177, we add the option to return immutable graphs to some generators in `src/sage/graphs/generators/families.py`. - `PasechnikGraph`, `SquaredSkewHadamardMatrixGraph`, `SwitchedSquaredSkewHadamardMatrixGraph`, `HanoiTowerGraph`, `line_graph_forbidden_subgraphs`, `p2_forbidden_minors` ### 📝 Checklist <!-- Put an `x` in all the boxes that apply. --> - [x] The title is concise and informative. - [x] The description explains in detail what this PR is about. - [x] I have linked a relevant issue or discussion. - [ ] I have created tests covering the changes. - [ ] I have updated the documentation and checked the documentation preview. ### ⌛ Dependencies <!-- List all open PRs that this PR logically depends on. For example, --> <!-- - sagemath#12345: short description why this is a dependency --> <!-- - sagemath#34567: ... --> URL: sagemath#41593 Reported by: David Coudert Reviewer(s): Frédéric Chapoton
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Following discussions in #39177, we add the option to return immutable graphs to some generators in
src/sage/graphs/generators/families.py.PasechnikGraph,SquaredSkewHadamardMatrixGraph,SwitchedSquaredSkewHadamardMatrixGraph,HanoiTowerGraph,line_graph_forbidden_subgraphs,p2_forbidden_minors📝 Checklist
⌛ Dependencies