Jupyter Notebook: command for hide the output of a cell?

Question

In my notebook, I have a cell returning temp calculation results. It\'s a bit long, so after it is run, I want to hide it and when needed, to show it.

To do it manually,

Answer 1

If you don't mind a little hacking, then you may write a simple script for inverting the "collapsed" attribute of each cell from false to true in the notebook .ipynb file (which is a simple JSON file). This is however may fail in the future if a the .ipynb format changes.