How to (intermittently) skip certain cells when running IPython notebook?

Question

I usually have to rerun (most parts of) a notebook when reopen it, in order to get access to previously defined variables and go on working.

However, sometimes I\'d

Answer 1

This question is a bit older, but the most convenient answer seems to be missing. You can use the 'initialization cells' from the NBextensions. Once installed/activated, you can in any notebook mark cells as 'initialization cells' which can then be run with a specific button.

• Install NBextensions:here

• Activate 'initialization cells' when you launch the jupyter dashboard

• In your notebook, in the 'view' menu choose 'cell toolbar' then 'initialization cell'

• Next to each cell there is now a checkbox. Mark all the cells you want to run for initialization
• When reopening a notebook, click the button that looks like a pocket calculator to run all the initialization cells.