SLEP needed: slicling pipelines about enhancement_proposals

[raamana]

Just out of curiosity, what would be the utility or applications for this feature be?

[amueller]

running the preprocessing pipeline so you know what the input for your model looks like. Or get the feature names for the features that go into the model. I added two related issues.

[jnothman]

Applying inverse_transform to the preprocessing pipeline without the last step is a common application. But generally, it's something that's relatively easy to do with the current Pipeline implementation (Pipeline(my_pipeline.steps[:-1])), but with a proposed Pipeline implementation that clones steps when fitting, this would be harder

[adrinjalali]

Should we close this now that scikit-learn/scikit-learn#2568 is merged?

[amueller]

yes.