Feature Request: add output filters

[paddymul]

I'm working on a notebook showing AWS automation commands. I want to make sure that my AWS_ID (or any other secret info) doesn't leak into the output. For shell commands I can pipe everything through a sed command, for python commands I can't do anything similar. Could a feature be added that allows output from a cell to filtered and modified before being being displayed? I think this is an IPython feature because it seems close to cell magics, if it's a jupyter feature I'd be happy to file a bug there. I'm also happy to implement this feature if I'm given some direction on where it would fit in.

[Carreau]

Do you mean when running live, or are you running things in nbconvert.

I see why this would make sens.
I woudl have a look at IPython.core.displayhook in compute_format_data, you will likely be able to intercept a dictionary of mimetype/values and if you look at the plain/text key (and likely the html one for pandas) you should be able to do a search/replace.

If that's the right place it should be relatively easy to add a list callable/filter from the configuration.