JupyterLab Server Application


class**kwargs: Any)#

A Lab Server Application that runs out-of-the-box

allowed_extensions_uris c.LabServerApp.allowed_extensions_uris = Unicode('')#

“A list of comma-separated URIs to get the allowed extensions list

Changed in version 2.0.0: LabServerApp.whitetlist_uris renamed to allowed_extensions_uris

answer_yes c.LabServerApp.answer_yes = Bool(False)#

Answer yes to any prompts.

app_settings_dir c.LabServerApp.app_settings_dir = Unicode('')#

The application settings directory.

app_url c.LabServerApp.app_url = Unicode('/lab')#

The url path for the application.

blacklist_uris c.LabServerApp.blacklist_uris = Unicode('')#

Deprecated, use LabServerApp.blocked_extensions_uris

blocked_extensions_uris c.LabServerApp.blocked_extensions_uris = Unicode('')#

A list of comma-separated URIs to get the blocked extensions list

Changed in version 2.0.0: LabServerApp.blacklist_uris renamed to blocked_extensions_uris

cache_files c.LabServerApp.cache_files = Bool(True)#

Whether to cache files on the server. This should be True except in dev mode.

config_file c.LabServerApp.config_file = Unicode('')#

Full path of a config file.

config_file_name c.LabServerApp.config_file_name = Unicode('')#

Specify a config file to load.

extra_labextensions_path c.LabServerApp.extra_labextensions_path = List()#

Extra paths to look for federated JupyterLab extensions

generate_config c.LabServerApp.generate_config = Bool(False)#

Generate default config file.

handlers c.LabServerApp.handlers = List()#

Handlers appended to the server.

jinja2_options c.LabServerApp.jinja2_options = Dict()#

Options to pass to the jinja2 environment for this

labextensions_path c.LabServerApp.labextensions_path = List()#

The standard paths to look in for federated JupyterLab extensions

labextensions_url c.LabServerApp.labextensions_url = Unicode('')#

The url for federated JupyterLab extensions

listings_refresh_seconds c.LabServerApp.listings_refresh_seconds = Int(3600)#

The interval delay in seconds to refresh the lists

listings_request_options c.LabServerApp.listings_request_options = Dict()#

The optional kwargs to use for the listings HTTP requests as described on

listings_url c.LabServerApp.listings_url = Unicode('')#

The listings url.

log_datefmt c.LabServerApp.log_datefmt = Unicode('%Y-%m-%d %H:%M:%S')#

The date format used by logging formatters for %(asctime)s

log_format c.LabServerApp.log_format = Unicode('[%(name)s]%(highlevel)s %(message)s')#

The Logging format template

log_level c.LabServerApp.log_level = Enum(30)#

Set the log level by value or name.

logging_config c.LabServerApp.logging_config = Dict()#

Configure additional log handlers.

The default stderr logs handler is configured by the log_level, log_datefmt and log_format settings.

This configuration can be used to configure additional handlers (e.g. to output the log to a file) or for finer control over the default handlers.

If provided this should be a logging configuration dictionary, for more information see:

This dictionary is merged with the base logging configuration which defines the following:

  • A logging formatter intended for interactive use called console.

  • A logging handler that writes to stderr called console which uses the formatter console.

  • A logger with the name of this application set to DEBUG level.

This example adds a new handler that writes to a file:

c.Application.logging_config = {
    'handlers': {
        'file': {
            'class': 'logging.FileHandler',
            'level': 'DEBUG',
            'filename': '<path/to/file>',
    'loggers': {
        '<application-name>': {
            'level': 'DEBUG',
            # NOTE: if you don't list the default "console"
            # handler here then it will be disabled
            'handlers': ['console', 'file'],
notebook_starts_kernel c.LabServerApp.notebook_starts_kernel = Bool(True)#

Whether a notebook should start a kernel automatically.

open_browser c.LabServerApp.open_browser = Bool(False)#

Whether to open in a browser after starting. The specific browser used is platform dependent and determined by the python standard library webbrowser module, unless it is overridden using the –browser (ServerApp.browser) configuration option.

schemas_dir c.LabServerApp.schemas_dir = Unicode('')#

The optional location of the settings schemas directory. If given, a handler will be added for settings.

settings c.LabServerApp.settings = Dict()#

Settings that will passed to the server.

settings_url c.LabServerApp.settings_url = Unicode('')#

The url path of the settings handler.

show_config c.LabServerApp.show_config = Bool(False)#

Instead of starting the Application, dump configuration to stdout

show_config_json c.LabServerApp.show_config_json = Bool(False)#

Instead of starting the Application, dump configuration to stdout (as JSON)

static_dir c.LabServerApp.static_dir = Unicode('')#

The optional location of local static files. If given, a static file handler will be added.

static_paths c.LabServerApp.static_paths = List()#

paths to search for serving static files.

This allows adding javascript/css to be available from the notebook server machine, or overriding individual files in the IPython

static_url_prefix c.LabServerApp.static_url_prefix = Unicode('')#

Url where the static assets for the extension are served.

template_paths c.LabServerApp.template_paths = List()#

Paths to search for serving jinja templates.

Can be used to override templates from notebook.templates.

templates_dir c.LabServerApp.templates_dir = Unicode('')#

The application templates directory.

themes_dir c.LabServerApp.themes_dir = Unicode('')#

The optional location of the themes directory. If given, a handler will be added for themes.

themes_url c.LabServerApp.themes_url = Unicode('')#

The theme url.

translations_api_url c.LabServerApp.translations_api_url = Unicode('')#

The url path of the translations handler.

tree_url c.LabServerApp.tree_url = Unicode('')#

The url path of the tree handler.

user_settings_dir c.LabServerApp.user_settings_dir = Unicode('')#

The optional location of the user settings directory.

whitelist_uris c.LabServerApp.whitelist_uris = Unicode('')#

Deprecated, use LabServerApp.allowed_extensions_uris

workspaces_api_url c.LabServerApp.workspaces_api_url = Unicode('')#

The url path of the workspaces API.

workspaces_dir c.LabServerApp.workspaces_dir = Unicode('')#

The optional location of the saved workspaces directory. If given, a handler will be added for workspaces.