Saving/Restoring a Jupyter Notebook Session

Say you have been working a lot in your current notebook, you have lots of DataFrames and Series that get a long time to be computed, and you want to make sure you recover quickly if, for some reason, your Session (Kernel) dies.

The answer is “dill”.

Installation:

    pip install dill

Save a Notebook session:

    import dill
    dill.dump_session('notebook_env.db')

Restore a Notebook session:

    import dill
    dill.load_session('notebook_env.db')

Caveats:

• Fails when there are generators.
• If you have pyodbc connection objects hanging around, you'll need to close them and then set them all to None otherwise, you get a “TypeError: can't pickle pyodbc.Connection objects” error.
• The notebook state does not include graphs that were generated by your code, so you'll need to rerun the cells to bring these back.

Refs:

• https://stackoverflow.com/questions/34342155/how-to-pickle-or-store-jupyter-ipython-notebook-session-for-later