How to recover deleted Jupyter notebook cell?

Question

I use Jupyter notebook. I accidentally deleted a cell, and I can\'t go step back.

How can I recover the notebook cell?

Answer 1

if you've already restarted your kernel then %history or _ih[:n] would be empty. You can hope for a recent checkpoint to revert to. You can do this with File > Revert to Checkpoint.

If you want to be sure what's in the checkpoint before you revert - in your working directory (the one your notebook lives in) you'll have a hidden folder that stores your checkpoints. cd .ipynb_checkpoints will get you there. You can look inside the file and see if your lost code is there.

This has just saved me. Found this in an answer here