other:python:starting
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other:python:starting [2022/01/04 20:45] jypeter [Ultra quick-start on the LSCE servers] |
other:python:starting [2022/01/04 22:06] jypeter [Using the LSCE jupyterhub server] Added user kernel definition |
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| - Learn Python by reading what you need on the [[other:python:jyp_steps|JYP's recommended steps for learning python]] page | - Learn Python by reading what you need on the [[other:python:jyp_steps|JYP's recommended steps for learning python]] page | ||
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| + | ===== Using the LSCE jupyterhub server ===== | ||
| + | |||
| + | The [[https://intranet.lsce.ipsl.fr/informatique/en/jupyter/index.php|LSCE jupyterhub notebook server]] is available for users with a LSCE Linux account: | ||
| + | * from a computer on the LSCE wired network: https://jupyter.lsce.ipsl.fr/ | ||
| + | * from other computers: start the [[https://intranet.lsce.ipsl.fr/informatique/fr/vpn-forticlient.php#vpnlsce|LSCE VPN]] before opening https://jupyter.lsce.ipsl.fr/ | ||
| + | |||
| + | ==== Using a non-standard kernel ==== | ||
| + | |||
| + | Note: a //kernel// is a specific python environment/distribution | ||
| + | |||
| + | The LSCE jupyterhub server can be used to open //Notebooks// using pre-configured Python or R //kernels//. It is also possible to define additional per-user kernels by adding [[https://jupyter-client.readthedocs.io/en/stable/kernels.html#kernel-specs|kernel configuration directories]] in the user's home directory | ||
| + | |||
| + | The steps below show how to add a specific [[other:python:starting#cdat|CDAT environment]] kernel, but can be easily adapted for using other kernels | ||
| + | |||
| + | - Initialize your (favorite) Python environment in a terminal, and (as usual) check which Python executable you are using\\ <code> >which python | ||
| + | /usr/bin/python | ||
| + | |||
| + | >source ~jypeter/.conda3_21-02_jyp.csh | ||
| + | >conda activate cdatm_py3 | ||
| + | |||
| + | (cdatm_py3) >which python | ||
| + | /home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm_py3/bin/python</code> | ||
| + | - Determine where the kernel configuration files of the **active** python are located\\ <code> >jupyter kernelspec list | ||
| + | Available kernels: | ||
| + | python3 /home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm19_nompi_py3/share/jupyter/kernels/python3</code> | ||
| + | - Copy the existing kernel directory that you have found to your home directory. You can use the existing kernel name, or use a new kernel name (using only ASCII letters, numbers, ''-'' hyphen, ''.'' period and ''_'' underscore)\\ <code> >cp -pr /home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm19_nompi_py3/share/jupyter/kernels/python3 ~/.local/share/jupyter/kernels | ||
| + | >cp -pr /home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm19_nompi_py3/share/jupyter/kernels/python3 ~/.local/share/jupyter/kernels/my_favorite_kernel | ||
| + | |||
| + | >ls ~/.local/share/jupyter/kernels/ | ||
| + | my_favorite_kernel/ python3/ | ||
| + | </code> | ||
| + | - Check that the ''kernelspec list'' command now finds the new kernel(s)\\ <code> >jupyter kernelspec list | ||
| + | Available kernels: | ||
| + | my_favorite_kernel your_home_dir/.local/share/jupyter/kernels/my_favorite_kernel | ||
| + | python3 your_home_dir/.local/share/jupyter/kernels/python3</code> | ||
| + | - You can optionally change the value of the ''display_name'' parameter in the ''kernel.json'' configuration file if you want to customize the name that will appear in the jupyterhub kernel menus\\ <code> >ls your_home_dir/.local/share/jupyter/kernels/my_favorite_kernel | ||
| + | kernel.json logo-32x32.png logo-64x64.png | ||
| + | |||
| + | >cat your_home_dir/.local/share/jupyter/kernels/my_favorite_kernel/kernel.json | ||
| + | { | ||
| + | "argv": [ | ||
| + | "/home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm19_nompi_py3/bin/python", | ||
| + | "-m", | ||
| + | "ipykernel_launcher", | ||
| + | "-f", | ||
| + | "{connection_file}" | ||
| + | ], | ||
| + | "display_name": "My favorite Python kernel", | ||
| + | "language": "python" | ||
| + | </code> | ||
| + | - refresh the https://jupyter.lsce.ipsl.fr/ page and the new kernel(s) should appear in the kernels' related menus | ||
| ===== Python distributions available for LSCE users ===== | ===== Python distributions available for LSCE users ===== | ||
other/python/starting.txt · Last modified: 2024/05/30 13:41 by jypeter
