Running makejinja in alpine docker container results in error

[CubicrootXYZ]

Describe the bug

Running makejinja in an alpine docker container results in AttributeError: 'Converter' object has no attribute '_structure_list'

To Reproduce
Steps to reproduce the behavior:

1. Use the following Dockerfile to build an image with docker build -t jinjatest .:

   FROM python:3.9-alpine
   
   WORKDIR /app
   
   RUN pip install makejinja
   

2. Run docker run -it jinjatest makejinja

Expected behavior

Help menu appearing.

Additional Information

Full output:

$ docker run -it jinjatest makejinja
Traceback (most recent call last):
  File "/usr/local/bin/makejinja", line 5, in <module>
    from makejinja.cli import makejinja_cli
  File "/usr/local/lib/python3.9/site-packages/makejinja/__init__.py", line 1, in <module>
    from . import config, loader
  File "/usr/local/lib/python3.9/site-packages/makejinja/config.py", line 5, in <module>
    import typed_settings as ts
  File "/usr/local/lib/python3.9/site-packages/typed_settings/__init__.py", line 6, in <module>
    from ._core import default_loaders, load, load_settings
  File "/usr/local/lib/python3.9/site-packages/typed_settings/_core.py", line 11, in <module>
    from .attrs import METADATA_KEY
  File "/usr/local/lib/python3.9/site-packages/typed_settings/attrs/__init__.py", line 21, in <module>
    from .hooks import auto_convert
  File "/usr/local/lib/python3.9/site-packages/typed_settings/attrs/hooks.py", line 98, in <module>
    auto_convert = make_auto_converter(default_converter())
  File "/usr/local/lib/python3.9/site-packages/typed_settings/converters.py", line 40, in default_converter
    register_strlist_hook(converter, ":")
  File "/usr/local/lib/python3.9/site-packages/typed_settings/converters.py", line 109, in register_strlist_hook
    (is_sequence, converter._structure_list),
AttributeError: 'Converter' object has no attribute '_structure_list'

[mirkolenz]

Hi! The error you are facing is an issue with makejinja's dependency typed-settings. It uses cattrs without an upper version bound, and with the release of cattrs v24, this error is thrown. It is already fixed upstream (https://gitlab.com/sscherfke/typed-settings/-/merge_requests/40), but these changes are yet to be published in an official release.

Also please note that the Docker base image python:3.9-alpine will get you an outdated version of makejinja. Since about a year or so, we only support Python 3.11 and up, so you will likely want to use a newer Python version.

We even provide an official Docker image (https://github.com/mirkolenz/makejinja/pkgs/container/makejinja) that you can directly pull and run. The image should also be unaffected by the changes to cattrs because we pin all dependencies in a lock-file. More instructions can be found in makejinja's README.

Hope this helps! If so, feel free to close the issue 😄

[mirkolenz]

typed-settings v24.5.0 has just been released and contains the fix for cattrs v24.

[CubicrootXYZ]

Thanks a lot for the detailed explanation, I can confirm it working with python 3.11. I appreciated your help.