Issue with installing package

[khairul047]

I am getting the following error when trying to pip install tethys-downscaling

error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [3 lines of output]
error in gcamreader setup command: 'install_requires' must be a string or iterable of strings containing valid project/version requirement specifiers; Expected end or semicolon (after version specifier)
lxml>=4.6.3click
~~~~~~~~^
[end of output]

[thurber]

hi @khairul047, thanks for reporting; can you let me know what operating system and python version you're using so i can try to reproduce?

the error message makes me think there's a misinterpretation of line endings. as a workaround while we try to diagnose, you could try cloning the gcamreader repository, checking that the line endings in its requirements.txt look correct, and then installing from source.

[khairul047]

Thank you for your reply. I am using Windows 11 Enterprise and the python version is 3.13.3. I was able to install gcamreder using both cloning and pip command. However, when I am trying to install tethys, I am getting the error message.

[thurber]

Thanks @khairul047, i can reproduce the issue with all Python versions 3.10 and above.

There's a typo in gcamreader 1.3.0 setup.py that is causing this and has since been fixed, but the newer gcamreader introduces another dependency issue. So this will take a little time and coordination for us to fix properly.

In the meantime, if you're able to use a Python 3.9 virtual environment, things should still work there. I'll get started fixing this up and notify here when resolved.

[thurber]

fix will depend on gcamreader issue JGCRI/gcamreader#42

[khairul047]

I used python 3.9 then I was able to install tethys. I installed it in virtual environment. However, when I am trying to run the example problem, then I got the following error.

"C:\Users\khasan\AppData\Local\Programs\Python\Python39\tethys_env\lib\site-packages\bokeh\core\enums.py", line 238, in enumeration
raise ValueError(f"expected a non-empty sequence of strings, got {nice_join(values)}")
ValueError: expected a non-empty sequence of strings, got typing.Literal['replace', 'append', 'intersect', 'subtract', 'xor'] or toggle

If I downgrade the bokeh in that case I got the following error

File "C:\Users\khasan\AppData\Local\Programs\Python\Python39\tethys_env\lib\site-packages\panel\reactive.py", line 28, in
from bokeh.models import ImportedStyleSheet
ImportError: cannot import name 'ImportedStyleSheet' from 'bokeh.models' (C:\Users\khasan\AppData\Local\Programs\Python\Python39\tethys_env\lib\site-packages\bokeh\models_init_.py)

[rodrigoms95]

Hi @khairul047 I just installed Tethys yesterday in a linux system using the following code:

conda create -n tethys PyYAML=6.0 numpy=1.22 pandas=1.4.0 netCDF4=1.6 xarray=2022.09.0 rioxarray=0.12.4 tqdm=4.66.2 matplotlib=3.8.3 dask=2023 geopandas=0.14.3 hvplot=0.9.2 lxml=4.6.3 bokeh=3.4.0

conda activate tethys

pip install tethys-downscaling

The issue seems to be a compatibility problem with an old version of bokeh and python 3.9. I found an error while trying to download the example dataset through tethys, but I downloaded it using the zenodo link and was afterwards able to correcly run the model. Hope this helps

[khairul047]

Thank you. It is working.