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Save and load notebooks to local-storage

Project description

Jupyter Offline Notebook

Binder PyPI

Save and load notebooks to browser storage, even if you've lost your connection to the server.

Installation

pip install jupyter-offlinenotebook

This should automatically enable the extension. If it is not listed in jupyter nbextension list or jupyter serverextension list install and enable it:

jupyter nbextension install --py jupyter_offlinenotebook --sys-prefix
jupyter nbextension enable --py jupyter_offlinenotebook --sys-prefix

jupyter serverextension install --py jupyter_offlinenotebook --sys-prefix
jupyter serverextension enable --py jupyter_offlinenotebook --sys-prefix

Usage

Offline notebook buttons

You should see up to five new buttons depending on your configuration and where you are running the notebook:

  • download the in-memory (browser) state of the notebook
  • save the in-memory state of the notebook to local-storage
  • load a notebook from local-storage
  • open the permanent URL of the repository containing this notebook
  • copy the permanent mybinder URL to share this repository

Saving and loading uses the repository ID and the path of the current notebook.

You should always see the Download button. If you are running this on mybinder all buttons should be visible. See the configuration section below to enable the other buttons on other systems.

If you don't see the buttons check the Javascript console log.

See example.ipynb

Configuration

This extension can be configured in jupyter_notebook_config.py by setting the following properties of c.OfflineNotebookConfig:

  • repository_id: A callable that returns the repository ID. This is used when storing and retrieving notebooks. Default is the value of the BINDER_REPO_URL environment variable.
  • repository_ref_url: A callable that returns the repository reference URL. Default is the value of the BINDER_REF_URL environment variable.
  • binder_persistent_url: A callable that returns the repository reference URL. Default is the values of the BINDER_LAUNCH_HOST and BINDER_PERSISTENT_REQUEST environment variables.
  • binder_repo_label: A callable that returns the label used to link to the repository.

WARNING

This extension is still in development. It is only tested on Firefox. Breaking changes may occur in future.

There are several major limitations including:

  • Local-storage is limited by quotas imposed by the browser.
  • A repository ID and path of the notebook within Jupyter Notebook are used, joined by a . This may change in future.

Development notes

This extension stores notebooks in browser storage using the IndexedDB API, wrapped with Dexie.js.

One server API call is made during initialisation to obtain the storage configuration. Everything else is done client-side so should work even if the server is disconnected.

Project details


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