Feature request: Limit %save magic command to save only the lines that did not result in errors.

[giacomomarchioro]

Hi, thanks for this wonderful tool!

When I save the history of the console I am not able to save only the commands that did not result in an error. So I have to remove the lines resulting in errors manually on the saved file.

I would like to add a %save flag so I can force the console to save only the good lines, I was wondering if it is feasible and if do you know where I could start.

I think this could be a very powerful feature.

Thanks a lot, Giacomo

[Carreau]

I think that might be a issue for ipython/ipython; but it does make sens.