Hi, > I can’t reproduce it with: […] I cannot reproduce it either and this migration should not happen™, because the phase 'disable-migration should disable it. (See /gnu/store/8ncan0ipzb240h23fwfspdhrzkzdw277-python-jupyter-core-4.7.1/lib/python3.8/site-packages/jupyter_core/application.py:145).
Alexander: Does this file exists for you too? guix shell python-notebook -- sh -c "stat \$JUPYTER_CONFIG_DIR/migrated" > The JUPYTER_CONFIG_DIR search path was added to ‘python-jupyter-core’ in > commit 1683e9d9677d54f695a54fc44ed309287989fc34. Lars, what are you > thoughts? Please *do not* remove this environment variable. It is required, because packages like jupyterlab drop a config file into this directory. Without it the jupyterlab extension will not be loaded by default and a simple `guix shell python-jupyterlab -- jupyter lab` will not work. Cheers, Lars