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fix issue in method delete_vertices of bipartite graphs #39813

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Krishnadubey1008
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this PR fixes ##39756
converted the vertices parameter to a list to ensure that it can be iterated multiple times.

📝 Checklist

  • The title is concise and informative.
  • The description explains in detail what this PR is about.
  • 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.

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@dcoudert
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Thank you for this new PR.

Could you:

  • change the title of this PR to something more informative like: fix issue in method delete_vertices of bipartite graphs
  • Add a doctest like
Check that :issue:`39756` is fixed::

    sage: B = BipartiteGraph([(0,2), (0,3), (1,2), (1,3)])
    sage: B.left, B.right
    ({0, 1}, {2, 3})
    sage: B.clear()
    sage: B.left, B.right
    (set(), set())

@Krishnadubey1008 Krishnadubey1008 changed the title converted the vertices parameter to a list fix issue in method delete_vertices of bipartite graphs Mar 28, 2025
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LGTM.

I have tested on my laptop as I cannot launch the CIs.

@Krishnadubey1008
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@dcoudert can I get to know inspite of your approval why the pr is not merged.

@user202729
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@dcoudert can I get to know inspite of your approval why the pr is not merged.

Wait until next release.

@vbraun
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vbraun commented Apr 2, 2025

Merge conflict, please fix

@user202729
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Ah, the force push again. Please do a git rebase to drop the commit 8a8453f from the commit history.

vbraun pushed a commit to vbraun/sage that referenced this pull request Apr 4, 2025
sagemathgh-39813: fix issue in method delete_vertices of bipartite graphs
    
this PR fixes #sagemath#39756
converted the vertices parameter to a list to ensure that it can be
iterated multiple times.
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->



### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [ ] The title is concise and informative.
- [ ] The description explains in detail what this PR is about.
- [ ] 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#39813
Reported by: Krishna Dubey
Reviewer(s): David Coudert
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4 participants