How to capture rich display using %%capture or similar magics?

[Paul A]

%%capture does not seem to capture rich output, such as pandas dataframe or interactive widgets. Could anyone suggest examples/ways to intercept those?

[Thomas Kluyver]

It should do. Make sure that your IPython is up to date.

On 8 August 2016 at 12:43, Paul A <rootsum...@gmail.com> wrote:

%%capture does not seem to capture rich output, such as pandas dataframe or interactive widgets. Could anyone suggest examples/ways to intercept those?

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[Paul A]

Nope, does not work:

See e.g. http://jupyter.cloudet.xyz/user/ri0KGeHgFqTG/notebooks/capture_does_not_work.ipynb

On Monday, August 8, 2016 at 12:54:52 PM UTC+1, takowl wrote:

It should do. Make sure that your IPython is up to date.

On 8 August 2016 at 12:43, Paul A <rootsum...@gmail.com> wrote:

%%capture does not seem to capture rich output, such as pandas dataframe or interactive widgets. Could anyone suggest examples/ways to intercept those?

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[MinRK]

The capture magic captures any explicit displayed/printed output. It does not include the *result* of the computation, triggered by the displayhook. If you called, instead, `display(df)`, it would capture it.

We could capture the result as well, though part of the impetus for this utilitiy was for output-flooding libraries, where you may just want to suppress all the side-effect output on your way to a result, and only look at it if something failed. In this use case, also hiding results wouldn't be desirable, but I can see how the current behavior might be surprising.

-MinRK

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[Thomas Kluyver]

I'm working on a PR to capture the result as well.

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[Thomas Kluyver]

https://github.com/ipython/ipython/pull/9851/files

I'm not sure if that's what we want to do, but there's what it would take.