Installation of pure python packages

[route2021]

Since version 1.6.3 (183) of Carnets plus (the version with Scipy) I can't load pure python packages anymore. This happens after a fresh installation of Carnets, not an update.
Here the message when trying to install psychrolib:

pip install psychrolib

Defaulting to user installation because normal site-packages is not writeable Collecting psychrolib Downloading PsychroLib-2.5.0.zip (9.5 kB) Preparing metadata (setup.py): started Preparing metadata (setup.py): finished with status 'error'

error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully. │ exit code: 1 ╰─> [0 lines of output] [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip. error: metadata-generation-failed

× Encountered error while generating package metadata. ╰─> See above for output.

note: This is an issue with the package mentioned above, not pip. hint: See above for details. WARNING: You are using pip version 22.0.2; however, version 22.0.3 is available. You should consider upgrading via the '/private/var/containers/Bundle/Application/D30FC94D-00C7-4686-B078-2E4B07205A39/Carnets-sci.app/Library/bin/python3 -m pip install --upgrade pip' command.

Note: you may need to restart the kernel to use updated packages.

[holzschu]

I ran a rapid test. I could upgrade pip, for example, and install rsa too. So not all packages are affected, but Psychrolib definitely is.

Running "!python setup.py egg_info" inside the psychrolib directory works, but running "!pip install --user ." does not, and fails by saying that "python setup.py egg_info" failed. I'm looking into it.

[holzschu]

The good news is that I found what is causing the issue. The bad news is that the fix is not going to be fast. I'm working on it.

[caryn-geady]

Following -- I have a similar issue with scikit-image

[holzschu]

I'm afraid fixing this issue won't fix the problem with scikit-image: it has lots of modules written in Cython, so it cannot be installed by the user. I think pillow (which is included) has more or less the same functionalities as scikit-image.

[caryn-geady]

Okay, thank you!

Caryn Geady, MSc, HBSc Graduate Student Researcher | Dept. of Medical Biophysics, University of Toronto (647) 210 9889 | @.*** https://caryn.geady.com

On Feb 14, 2022, at 2:47 PM, Nicolas Holzschuch @.***> wrote:

I'm afraid fixing this issue won't fix the problem with scikit-image: it has lots of modules written in Cython, so it cannot be installed by the user. I think pillow (which is included) has more or less the same functionalities as scikit-image.

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[holzschu]

Thank you very much for raising this issue, it impacts a lot of users. I'm uploading a build with the fix. Expect 1-2 days before the build is approved by Apple.

[TheUncanny97]

Thank you very much for raising this issue, it impacts a lot of users. I'm uploading a build with the fix. Expect 1-2 days before the build is approved by Apple.

Thanks a lot!

[holzschu]

Hi, the TestFlight version is out, with the fix: https://testflight.apple.com/join/UbNIjkjp It works in my tests. If you don't want to install the TestFlight version, the AppStore version should have the fix in a few days.

[route2021]

Good work, pip works again as usual. Thanks a lot!