JupyterLab dependency incorrectly specified

[ZelphirKaltstahl]

I think there is a mistake with specifying JupyterLab as a dependency incorrectly.

When I install jupyterlab-code-formatter = "==2.2.1" with juypterlab = "==3.1.13" using pipenv, I receive no warning at all, that these versions are not compatible. In fact, I see JupyterLab being wrongly specified here

jupyterlab_code_formatter/pyproject.toml

Line 40 in 4b68e0c

"jupyterlab>=3.0.0",

, while JupyterLab itself tells me, that jupyterlab-code-formatter at version 2.2.1 is incompatible, when I run jupyter labextension list:

"jupyterlab_code_formatter@2.2.1" is not compatible with the current JupyterLab
Conflicting Dependencies:
JupyterLab                  Extension       Package
>=3.1.12 <3.2.0             >=3.6.0 <4.0.0||>=4.0.0 <4.1.0@jupyterlab/application
>=3.1.12 <3.2.0             >=3.6.0 <4.0.0||>=4.0.0 <4.1.0@jupyterlab/fileeditor
>=3.1.12 <3.2.0             >=3.6.0 <4.0.0||>=4.0.0 <4.1.0@jupyterlab/mainmenu
>=3.1.12 <3.2.0             >=3.6.0 <4.0.0||>=4.0.0 <4.1.0@jupyterlab/settingregistry

This package should specify its dependency properly, so that users notice this mismatch in dependencies as early as possible, which is when installing the Python package from PyPI.

Now I also cannot easily figure out, which version of jupyterlab-code-formatter I have to use instead, because I first have to create a complete setup, install the extension etc. and then run jupyter labextension list again, to find out, whether I installed a compatible version.