Remove nose package?

[Isuru Fernando]

Building the nose package requires 'use_2to3' in setuptools, but the latest setuptools version

has dropped support for 'use_2to3'. We can either run 2to3 manually or drop the nose

package. Since nose hasn't had an update since 2016 and is unmaintained, I think it's time

to drop it.

Isuru

[Dima Pasechnik]

nose became nose2: https://github.com/nose-devs/nose2 - which is being developed.

Whether we need so many different testing frameworks is a question.

I'd say, just remove nose.

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[David Roe]

I don't have a strong opinion on whether to drop nose or not, but I was curious how it was used in Sage.  It looks to be required to run tests for networkx, cvxopt and symengine.  Will tests for those packages just need to be run after installing nose manually?

David

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[Isuru Fernando]

> It looks to be required to run tests for networkx, cvxopt and symengine.  Will tests for those packages just need to be run after installing nose manually?

At least for symengine, we can change to pytest. I suppose other packages can too.

Isuru

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[Dima Pasechnik]

On Wed, Sep 29, 2021 at 10:52 PM Isuru Fernando <isu...@gmail.com> wrote:

> It looks to be required to run tests for networkx, cvxopt and symengine.  Will tests for those packages just need to be run after installing nose manually?

At least for symengine, we can change to pytest. I suppose other packages can too.

networkx switched to pytest, cf. https://networkx.org/documentation/stable/developer/contribute.html#contributor-guide

Isuru

On Wed, Sep 29, 2021 at 4:49 PM David Roe <roed...@gmail.com> wrote:

I don't have a strong opinion on whether to drop nose or not, but I was curious how it was used in Sage.  It looks to be required to run tests for networkx, cvxopt and symengine.  Will tests for those packages just need to be run after installing nose manually?

David

On Wed, Sep 29, 2021 at 5:35 PM Isuru Fernando <isu...@gmail.com> wrote:

Building the nose package requires 'use_2to3' in setuptools, but the latest setuptools version

has dropped support for 'use_2to3'. We can either run 2to3 manually or drop the nose

package. Since nose hasn't had an update since 2016 and is unmaintained, I think it's time

to drop it.

Isuru

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[Thierry]

Hi,

nose selftests are broken, networkx and cvxopt selftests are broken
because they still rely on nose (in Sage), while upstream now relies
on pytest. Symengine does not rely on nose (nor pytest), but on cmake.

- fix for cvxopt: https://trac.sagemath.org/ticket/32598 (needs_review)
- fix for networkx: https://trac.sagemath.org/ticket/32597 (needs_review)

- removal of nose (proposal): https://trac.sagemath.org/ticket/32595

Now that Sage does not rely on nose anymore, i am +1 for its removal
(and will put #32595 on needs_review if we agree on this).

By the way, should pytest become standard ?

Ciao,
Thierry

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