The tutorial "Building conda packages with conda skeleton" is broken - conda skeleton pypi click fails

[noamraph]

Checklist

• I added a descriptive title
• I searched open reports and couldn't find a duplicate

What happened?

Following the tutorial results in an error. I repeated this in a docker container, and the error is reproduced.

This is related to #5258 (comment).

Indeed, the tutorial says "We recommend Grayskull, a newer alternative to conda-skeleton", but the github page is not a tutorial, so a newbie like myself continues with the tutorial. Perhaps if it's hard to fix, just change the note to say something like "Note: this tutorial currently doesn't work. We recommend using Grayskull. If you with to fix this issue, please see this MR."

To reproduce, run:

PREFIX=~/conda
mkdir -p $PREFIX
wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O $PREFIX/miniconda.sh
bash $PREFIX/miniconda.sh -b -u -p $PREFIX
rm $PREFIX/miniconda.sh

source ~/conda/etc/profile.d/conda.sh

conda create -y --name testenv conda-build git
conda activate testenv
conda skeleton pypi click

Result:

Traceback (most recent call last):
  File "/tmp/tmphld75h_6conda_skeleton_click-8.1.7.tar.gz/click-8.1.7/setup.py", line 3, in <module>
    setup(
  File "/home/docker/conda/envs/testenv/conda-bld/skeleton_1732034413977/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_pla/lib/python3.12/site-packages/setuptools/__init__.py", line 117, in setup
    return distutils.core.setup(**attrs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/docker/conda/envs/testenv/conda-bld/skeleton_1732034413977/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_pla/lib/python3.12/site-packages/setuptools/_distutils/core.py", line 218, in setup
    fn.write(yaml.safe_dump(data, encoding=None))
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/docker/conda/envs/testenv/conda-bld/skeleton_1732034413977/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_pla/lib/python3.12/site-packages/ruamel/yaml/main.py", line 1260, in safe_dump
    error_deprecation('safe_dump', 'dump', arg="typ='safe', pure=True")
  File "/home/docker/conda/envs/testenv/conda-bld/skeleton_1732034413977/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_pla/lib/python3.12/site-packages/ruamel/yaml/main.py", line 1039, in error_deprecation
    raise AttributeError(s, name=None)
AttributeError: 
"safe_dump()" has been removed, use

  yaml = YAML(typ='safe', pure=True)
  yaml.dump(...)

instead of file "/home/docker/conda/envs/testenv/conda-bld/skeleton_1732034413977/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_pla/lib/python3.12/site-packages/setuptools/_distutils/core.py", line 218

        fn.write(yaml.safe_dump(data, encoding=None))

Additional Context

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