Logs all the execution of a notebook and stores the log in the notebook metadata. When you open the .ipynb file, it will be an array of objects under .metadata.history, and you can also access it via Jupyter.notebook.metadata.history in the console.
Please navigate into the root of the directory
pip install notetaker
jupyter nbextension install --user --py notetaker
jupyter nbextension enable --user --py notetakerThis installs it for the current user. You can use --system to install it systemwide (needs root) too.
There are two types of log entries. One is execution and one is completion.
When a cell is executed, the entry of type execution is appended to the log, containing the following info:
type, which is"execution"code, which is the code executedid, which is the id of the cell. Note that the id is not persisted across sessions, i.e., if you refresh the browser (even if your kernel is still running), the value of cell id will change.idx, the current position of the cell that is ran. For instance, ifidxis0, then this is the first celltime, the time when the cell started to run. The format saved by Jupyter turns into an odd string, but once de-JSONed, the time should be correct.
When a cell has finished executing, the entry of type completion is appended to the log, containing the following info:
type, which is"completion"time, the time when the cell finished running. Note that even if the cell crashes with error, this event is still called. Some cells can miss the corresponding "completion" log entry if the kernel hangs.
If you are developing this extension and are making changes, then install via the following
jupyter nbextension install --symlink notetaker
jupyter nbextension enable notetaker/mainNotice the addition of the symlink flag, which allows you to edit the file and when you refresh your notebook, the changes will be reflected. Note also that if you have already ran the previous command, running the flag symlink will no longer work, and you should