Update igraph to 0.9.5 and python_igraph to 0.9.8

[dcoudert]

Released

• igraph 0.9.5, Nov 2021 https://github.com/igraph/igraph/releases
• python_igraph (PyPI package now just called igraph), https://github.com/igraph/python-igraph/blob/master/CHANGELOG.md

We also move the igraph feature to sage.features.igraph.

The previous update was in #30899.

Depends on #32174

CC: @mkoeppe @dimpase @kiwifb @slel

Component: packages: optional

Author: Matthias Koeppe

Branch: 946ebed

Reviewer: David Coudert

Issue created by migration from https://trac.sagemath.org/ticket/32510

[dcoudert]

Commit: 38b565e

[dcoudert]

Branch: public/32510_igraph

[dcoudert]

comment:1

I was able to install on fedora 32 but I have compilation errors of igraph on macOS. I will investigate further.

---

New commits:

38b565e

trac #32510: update igraph to 0.9.4 and python_igraph to 0.9.6

[dcoudert]

comment:2

at least, it's working well with a homebrew install of igraph 0.9.4.

[mkoeppe]

comment:3

This would benefit from a GH Actions run https://doc.sagemath.org/html/en/developer/portability_testing.html#automatic-parallel-tox-runs-on-github-actions

[dcoudert]

comment:4

Not sure how to do that...

[slel]

comment:5

To launch a run of github actions:

• visit https://github.com/sagemath/sage and click "Fork" at the top right

• in a terminal, in your Sage directory, add a remote for your fork:

  git remote add gh-dcoudert git@github.com:dcoudert/sage.git

• switch to the branch for this ticket

• create a tag: git tag ci-32510

• push the tag to your fork: git push gh-dcoudert ci-32510

That's it. You can check the results at https://github.com/dcoudert/sage/actions

[dcoudert]

comment:6

Thank you for this very clear how-to.

I did it, but so far I don't see any change at https://github.com/dcoudert/sage/actions. I'll check again later.

[dcoudert]

comment:7

Actually, I don't see the ci-32510 tag at https://github.com/dcoudert/sage/actions. I don't know if I did something wrong or if I have something else to do.

[slel]

comment:8

Did I forget and skip one step?
Hopefully Dima or Matthias can spot which.