Executing: jupyter lab --help JupyterLab - An extensible computational environment for Jupyter. This launches a Tornado based HTML Server that serves up an HTML5/Javascript JupyterLab client. JupyterLab has three different modes of running: * Core mode (`--core-mode`): in this mode JupyterLab will run using the JavaScript assets contained in the installed `jupyterlab` Python package. In core mode, no extensions are enabled. This is the default in a stable JupyterLab release if you have no extensions installed. * Dev mode (`--dev-mode`): uses the unpublished local JavaScript packages in the `dev_mode` folder. In this case JupyterLab will show a red stripe at the top of the page. It can only be used if JupyterLab is installed as `pip install -e .`. * App mode: JupyterLab allows multiple JupyterLab "applications" to be created by the user with different combinations of extensions. The `--app-dir` can be used to set a directory for different applications. The default application path can be found using `jupyter lab path`. Subcommands =========== Subcommands are launched as `lab cmd [args]`. For information on using subcommand 'cmd', do: `lab cmd -h`. build clean path paths workspace workspaces licenses Options ======= The options below are convenience aliases to configurable class-options, as listed in the "Equivalent to" description-line of the aliases. To see all configurable class-options for some , use: --help-all --debug Set debug level for the extension and underlying server applications. Equivalent to: [--ServerApp.log_level=DEBUG --ExtensionApp.log_level=DEBUG] --show-config Show the application's configuration (human-readable format) Equivalent to: [--Application.show_config=True] --show-config-json Show the application's configuration (json format) Equivalent to: [--Application.show_config_json=True] --generate-config generate default config file Equivalent to: [--JupyterApp.generate_config=True] -y Answer yes to any questions instead of prompting. Equivalent to: [--JupyterApp.answer_yes=True] --allow-root Allow the server to be run from root user. Equivalent to: [--ServerApp.allow_root=True] --no-browser Prevent the opening of the default url in the browser. Equivalent to: [--ServerApp.open_browser=False --ExtensionApp.open_browser=False] --autoreload Autoreload the webapp Enable reloading of the tornado webapp and all imported Python packages when any changes are made to any Python src files in server or extensions. Equivalent to: [--ServerApp.autoreload=True] --script DEPRECATED, IGNORED Equivalent to: [--FileContentsManager.save_script=True] --no-script DEPRECATED, IGNORED Equivalent to: [--FileContentsManager.save_script=False] --core-mode Start the app in core mode. Equivalent to: [--LabApp.core_mode=True] --dev-mode Start the app in dev mode for running from source. Equivalent to: [--LabApp.dev_mode=True] --skip-dev-build Skip the initial install and JS build of the app in dev mode. Equivalent to: [--LabApp.skip_dev_build=True] --watch Start the app in watch mode. Equivalent to: [--LabApp.watch=True] --splice-source Splice source packages into app directory. Equivalent to: [--LabApp.splice_source=True] --expose-app-in-browser Expose the global app instance to browser via window.jupyterapp. Equivalent to: [--LabApp.expose_app_in_browser=True] --extensions-in-dev-mode Load prebuilt extensions in dev-mode. Equivalent to: [--LabApp.extensions_in_dev_mode=True] --collaborative To enable real-time collaboration, you must install the extension `jupyter_collaboration`. You can install it using pip for example: python -m pip install jupyter_collaboration This flag is now deprecated and will be removed in JupyterLab v5. Equivalent to: [--LabApp.collaborative=True] --custom-css Load custom CSS in template html files. Default is False Equivalent to: [--LabApp.custom_css=True] --log-level= Set the log level by value or name. Choices: any of [0, 10, 20, 30, 40, 50, 'DEBUG', 'INFO', 'WARN', 'ERROR', 'CRITICAL'] Default: 30 Equivalent to: [--Application.log_level] --config= Full path of a config file. Default: '' Equivalent to: [--JupyterApp.config_file] --ip= The IP address the Jupyter server will listen on. Default: 'localhost' Equivalent to: [--ServerApp.ip] --port= The port the server will listen on (env: JUPYTER_PORT). Default: 0 Equivalent to: [--ServerApp.port] --port-retries= The number of additional ports to try if the specified port is not available (env: JUPYTER_PORT_RETRIES). Default: 50 Equivalent to: [--ServerApp.port_retries] --keyfile= The full path to a private key file for usage with SSL/TLS. Default: '' Equivalent to: [--ServerApp.keyfile] --certfile= The full path to an SSL/TLS certificate file. Default: '' Equivalent to: [--ServerApp.certfile] --client-ca= The full path to a certificate authority certificate for SSL/TLS client authentication. Default: '' Equivalent to: [--ServerApp.client_ca] --notebook-dir= The directory to use for notebooks and kernels. Default: '' Equivalent to: [--ServerApp.root_dir] --browser= Specify what command to use to invoke a web browser when starting the server. If not specified, the default browser will be determined by the `webbrowser` standard library module, which allows setting of the BROWSER environment variable to override it. Default: '' Equivalent to: [--ServerApp.browser] --pylab= DISABLED: use %pylab or %matplotlib in the notebook to enable matplotlib. Default: 'disabled' Equivalent to: [--ServerApp.pylab] --watch= Whether to serve the app in watch mode Default: False Equivalent to: [--LabApp.watch] --app-dir= The app directory to launch JupyterLab from. Default: None Equivalent to: [--LabApp.app_dir] Examples -------- jupyter lab # start JupyterLab jupyter lab --dev-mode # start JupyterLab in development mode, with no extensions jupyter lab --core-mode # start JupyterLab in core mode, with no extensions jupyter lab --app-dir=~/myjupyterlabapp # start JupyterLab with a particular set of extensions jupyter lab --certfile=mycert.pem # use SSL/TLS certificate To see all available configurables, use `--help-all`.