[IPython-dev] IPython Notebook Multiple Checkpoints

Kyle Kelley rgbkrk at gmail.com
Sun Aug 4 22:33:51 EDT 2013

Hey all,

I added checkpoints to the notebook manager I've been working on:

[image: Inline image 1]

However, I'm having trouble with multiple checkpoints. Single checkpoints
work beautifully but multiples are downright broken. It seems like my last
checkpoint reigns supreme. Multiple checkpoints get loaded when opening up
a previously saved notebook, but any new checkpoints write over the top of
the displayed list (still saved properly on the backend though).

What am I missing from the current implementation and documentation that I
should be looking to?

I copied the formatting of the returned structure needed from
filenbmanager.py -- (list containing dictionaries with fields
"checkpoint_id" and "last_modified").? The new multi dir sexiness in
https://github.com/ipython/ipython/pull/3619 is doing the same thing. Has
anyone tried out multiple checkpoints?

-- Kyle
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