ModuleNotFoundError: No module named 'click_default_group

[honzajavorek]

No matter what I do, I'm getting this error:

$ datasette
Traceback (most recent call last):
  File "/Users/honza/Library/Caches/pypoetry/virtualenvs/juniorguru-Lgaxwd2n-py3.11/bin/datasette", line 5, in <module>
    from datasette.cli import cli
  File "/Users/honza/Library/Caches/pypoetry/virtualenvs/juniorguru-Lgaxwd2n-py3.11/lib/python3.11/site-packages/datasette/cli.py", line 6, in <module>
    from click_default_group import DefaultGroup
ModuleNotFoundError: No module named 'click_default_group'

I have datasette in my dependencies like this:

[tool.poetry.group.dev.dependencies]
datasette = {version = "1.0a7", allow-prereleases = true}

I had the latest regular version (not pre-release) there originally, but the result was the same:

[tool.poetry.group.dev.dependencies]
datasette = "0.64.5"

Full pyproject.toml is at https://github.com/honzajavorek/junior.guru/ Previously datasette worked for me, but I guess something had to upgrade and now I can't even launch it.