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Re:JupyterLab: the next generation of the Jupyter Notebook by thanatropism on Friday July 15, 2016 @12:54PM (#12102309)
The real simple thing would be to paint a border or just a sideline in cells that have already been executed.

Just that would make everything much, much better.

Re:JupyterLab: the next generation of the Jupyter Notebook by jasongrout on Friday July 15, 2016 @02:45PM (#12103007)
Thanks, that makes a lot of sense. I've opened an issue: https://github.com/jupyter/jupyterlab/issues/405.