pytest: ignore cython files

[tobiasdiez]

As we probably don't want people to write pytests in Cython, we should skip collecting cython files to prevent issues like

$ ./sage -t src/sage/symbolic/expression.pyx
[...]

============================================================================================================ test session starts ============================================================================================================
platform darwin -- Python 3.10.2, pytest-7.0.1, pluggy-1.0.0
rootdir: /Users/mkoeppe/s/sage/sage-rebasing/worktree-gcc11/src, configfile: tox.ini
collected 0 items                                                                                                                                                                                                                           

=========================================================================================================== no tests ran in 0.01s ===========================================================================================================
ERROR: not found: /Users/mkoeppe/s/sage/sage-rebasing/worktree-gcc11/src/sage/symbolic/expression.pyx

Later, one could use https://github.com/lgpage/pytest-cython to extract doctests from cython files.

Depends on #33572

CC: @mkoeppe

Component: doctest framework

Author: Tobias Diez

Branch/Commit: 4c0ff54

Reviewer: Matthias Koeppe

Issue created by migration from https://trac.sagemath.org/ticket/33560

[tobiasdiez]

Branch: public/tests/pytest_no_cython

[tobiasdiez]

Commit: 3d5179a

[tobiasdiez]

New commits:

3d5179a

pytest: Ignore cython files

[mkoeppe]

comment:2

Merge conflict with #33549

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

cce0285

Merge remote-tracking branch 'origin/develop' into public/tests/pytest_no_cython

[sagetrac-git]

Changed commit from 3d5179a to cce0285

[mkoeppe]

Dependencies: #33572

[sagetrac-git]

Changed commit from cce0285 to feffc30

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

1ab83b2	src/bin/sage: Implement 'sage --pytest'
9036ca8	src/conftest.py: import sage.all to avoid cyclic import errors
3c09949	src/conftest.py: Add # type: ignore, add reference to trac ticket
07b5852	src/conftest.py: Remove outdated text
f53bbc7	src/bin/sage: Handle 'sage -pytest' without file args
11219e5	src/tox.ini (pytest): Set --import-mode importlib here, not in src/bin/sage, src/bin/sage-runtests
feffc30	Merge #33572

[mkoeppe]

comment:6

I've merged #33572 to resolve a merge conflict and tested with ./sage -pytest src/sage/symbolic/expression.pyx.

[mkoeppe]

Reviewer: Matthias Koeppe

[tobiasdiez]

comment:7

Thanks!

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1 and set ticket back to needs_review. This was a forced push. New commits:

f0d5f84	src/conftest.py: import sage.all to avoid cyclic import errors
d881a5a	src/conftest.py: Add # type: ignore, add reference to trac ticket
1242e1f	src/conftest.py: Remove outdated text
0d9225d	src/bin/sage: Handle 'sage -pytest' without file args
05bc58f	src/tox.ini (pytest): Set --import-mode importlib here, not in src/bin/sage, src/bin/sage-runtests
4c0ff54	Merge #33572

[sagetrac-git]

Changed commit from feffc30 to 4c0ff54

[mkoeppe]

comment:9

Redid the merge with #33572

[vbraun]

Changed branch from public/tests/pytest_no_cython to 4c0ff54