Package: jupyterlab Version: 4.0.11+ds1+~cs11.25.27-2 The package version number has not been processed correctly:
/usr/lib/python3/dist-packages/jupyterlab-0.0.0.egg-info/PKG-INFO starts with the lines: Metadata-Version: 2.1 Name: jupyterlab Version: 0.0.0 Summary: JupyterLab computational environment I have no idea what has gone wrong; jupyterlab/_version.py seems to be fine. Best wishes, Julian