0.3.4: pytest is failing because missing node_modules/y-websocket/package.json file

[kloczek]

I'm packaging your module as an rpm package so I'm using the typical PEP517 based build, install and test cycle used on building packages from non-root account.

• python3 -sBm build -w --no-isolation
• because I'm calling build with --no-isolation I'm using during all processes only locally installed modules
• install .whl file in </install/prefix>
• run pytest with $PYTHONPATH pointing to sitearch and sitelib inside </install/prefix>
• build is performed in env which is cut off from access to the public network (pytest is executed with -m "not network")

On first look looks like some files are missing in git repo.
Here is pytest output:

+ PYTHONPATH=/home/tkloczko/rpmbuild/BUILDROOT/python-jupyter-ydoc-0.3.4-2.fc35.x86_64/usr/lib64/python3.8/site-packages:/home/tkloczko/rpmbuild/BUILDROOT/python-jupyter-ydoc-0.3.4-2.fc35.x86_64/usr/lib/python3.8/site-packages
+ /usr/bin/pytest -ra -m 'not network'
ImportError while loading conftest '/home/tkloczko/rpmbuild/BUILD/jupyter_ydoc-0.3.4/tests/conftest.py'.
tests/conftest.py:26: in <module>
    update_json_file(here.parent / "node_modules/y-websocket/package.json", d)
tests/conftest.py:17: in update_json_file
    with open(path, "rb") as f:
E   FileNotFoundError: [Errno 2] No such file or directory: '/home/tkloczko/rpmbuild/BUILD/jupyter_ydoc-0.3.4/node_modules/y-websocket/package.json'

Here is list of installed modules in build env

Package                       Version
----------------------------- -----------------
aiofiles                      23.1.0
alabaster                     0.7.13
attrs                         22.2.0
Babel                         2.12.1
build                         0.10.0
charset-normalizer            3.1.0
distro                        1.8.0
docutils                      0.19
editables                     0.3
exceptiongroup                1.0.0
gpg                           1.18.0-unknown
hatchling                     1.13.0
idna                          3.4
imagesize                     1.4.1
importlib-metadata            6.1.0
iniconfig                     2.0.0
Jinja2                        3.1.2
libcomps                      0.1.19
markdown-it-py                2.2.0
MarkupSafe                    2.1.2
mdit-py-plugins               0.3.5
mdurl                         0.1.2
myst-parser                   1.0.0
packaging                     23.0
pathspec                      0.11.0
pip                           23.0.1
pluggy                        1.0.0
Pygments                      2.14.0
pyproject_hooks               1.0.0
pytest                        7.2.2
python-dateutil               2.8.2
pytz                          2023.2
PyYAML                        6.0
requests                      2.28.2
rpm                           4.17.0
six                           1.16.0
snowballstemmer               2.2.0
Sphinx                        6.1.3
sphinxcontrib-applehelp       1.0.4
sphinxcontrib-devhelp         1.0.2.dev20230202
sphinxcontrib-htmlhelp        2.0.0
sphinxcontrib-jsmath          1.0.1.dev20230128
sphinxcontrib-qthelp          1.0.3.dev20230128
sphinxcontrib-serializinghtml 1.1.5
tomli                         2.0.1
typing_extensions             4.5.0
urllib3                       1.26.15
websockets                    10.4
wheel                         0.38.4
y-py                          0.6.1
ypy-websocket                 0.8.4
zipp                          3.15.0

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[davidbrochart]

Did you install the node modules?

[kloczek]

Here is build output:

+ /usr/bin/python3 -sBm build -w --no-isolation
* Getting build dependencies for wheel...
* Building wheel...
Successfully built jupyter_ydoc-0.3.4-py3-none-any.whl

[davidbrochart]

If you want to run the tests you need to do the same as in the CI.

[kloczek]

So why all necessary steps are not part of the begin of the pytest session and some steps are coded outside pytest framework? 🤔

[kloczek]

BTW line

jupyter_ydoc/.github/workflows/test.yml

Line 88 in eea2058

python -m pytest -v

is wring.
It was many times told by pytest told by pytest developers to not use pytest by python -m pytest because if python is executed by python -m foo it adds current directory to sys.path whcih usually mesess test suite.
This is why pytest provides pytest script wrapper.

[kloczek]

Just tested 1.0.0 and looks like on generate documentation is jet another issue

+ /usr/bin/sphinx-build -n -T -b man docs/source build/sphinx/man
Running Sphinx v6.1.3
making output directory... done
npm ERR! code EUNSUPPORTEDPROTOCOL
npm ERR! Unsupported URL Type "workspace:": workspace:javascript

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/tkloczko/.npm/_logs/2023-03-29T13_27_10_716Z-debug-0.log

Traceback (most recent call last):
  File "/usr/lib/python3.8/site-packages/sphinx/cmd/build.py", line 279, in build_main
    app = Sphinx(args.sourcedir, args.confdir, args.outputdir,
  File "/usr/lib/python3.8/site-packages/sphinx/application.py", line 237, in __init__
    self.config.setup(self)
  File "/home/tkloczko/rpmbuild/BUILD/jupyter_ydoc-1.0.0/docs/source/conf.py", line 96, in setup
    check_call(["npm", "install"], cwd=str(js))
  File "/usr/lib64/python3.8/subprocess.py", line 364, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['npm', 'install']' returned non-zero exit status 1.

Exception occurred:
  File "/usr/lib64/python3.8/subprocess.py", line 364, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['npm', 'install']' returned non-zero exit status 1.
The full traceback has been saved in /tmp/sphinx-err-3sxomjlk.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
Building jupyterlab API docs

[davidbrochart]

So why all necessary steps are not part of the begin of the pytest session and some steps are coded outside pytest framework?

That would be a nice improvement. Do you want to open a PR?
At the same time, I don't think that asking pytest to run yarn to install node modules would solve your issue, since you work in an environment cut off from access to the public network, right?

[kloczek]

Most of the time I'm spending on packaging.
I'm not bred and butter python develoer however in may jupyter modules already are implemrntd callibg yarn.
Just checked my spec fiels:

[tkloczko@pers-jacek SPECS]$ grep yarn python-*
python-ipyleaflet.spec:BuildRequires:   yarnpkg
python-jupyterlab.spec:BuildRequires:   yarnpkg

[davidbrochart]

But how would you get the node modules without access to the Internet?

[kloczek]

I've tested that currently even with opened access to the public network nothing tries to download sometbing.

Generally it is alway possible to provide necessaty nodejs mdules installed locally.

[davidbrochart]

Currently you have to invoke yarn just like in the CI.