问题
While working in an ipython notebook, eventually I had to Ctrl+C as the kernel seemed to be halted.
The console gave me a message like:
[NotebookApp] Kernel shutdown: 5faa86bf-........f6
[NotebookApp] Kernel shutdown: 71........22
[NotebookApp] ....
(I had three notebooks running)
But something went wrong and my notebook file.ipynb is empty (actually only the one I was actively using).
Is there a way to recover that file before it was deleted? Some place where automatically-saved o manually-saved versions are stored?
(Running python 2.7 (Anaconda) in Windows 7)
回答1:
You can check in .ipynb_checkpoints/ in the folder where your notebook was for recent enough version of IPython.
回答2:
If none of the above helped, I found a workaround to recover most of the changes I did since the last checkout - by simply calling this command in your notebook:
%history -g
If you want your IPython history in a plain-text file, you can export it yourself.
You can also do it for a specific filename:
%history -g -f filename
What does -g do? – Without -g it exports the history for the current session. With -g it exports history for all sessions.
来源：https://stackoverflow.com/questions/20356086/how-to-recover-a-notebook-emptied-after-kernel-crash