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| As Python 3.9 is available on the clusters, when creating a Python virtual environment to work with Python 3.9 and following the [[JupyterNotebook#Installing_Jupyter_Notebook|instruction to install Jupyter Notebook]], the traditional notebook interface seems no longer supported, e.g. it fails to launch a Jupyter Notebook server using the wrapper script notebook.sh, which is created in step 5 of the given instruction. However, the [https://jupyter.org/ JupyerLab] interface is supported, which is considered as "Jupyter’s Next-Generation Notebook Interface", and can be installed in the virtual environment with the command:
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| {{Command2
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| |prompt=(jupyter_py3)_[name@server ~]$
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| |pip install --no-index jupyterlab}}
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| Then the wrapper script that launches Jupyter Notebook with a JupyterLab interface can be created with the command:
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| {{Command2
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| |prompt=(jupyter_py3)_[name@server ~]$
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| |echo -e '#!/bin/bash\nunset XDG_RUNTIME_DIR\njupyter-lab --ip $(hostname -f) --no-browser' > $VIRTUAL_ENV/bin/notebook.sh
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| }}
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