Multi-line expressions

[akdor1154]

A lot of my slow computes are from pretty big expressions. Some can be split over multiple lines (e.g. for a sql script I can define the sql string earlier and cache just the execution) but others can't easily (say a big nasty nested comprehension).
It would be useful to have a multiline magic or something as well to be able to cache these.

Great lib btw!

[diallobakary4]

I am facing a similar problem with multiple loops.
A cache cell magic will really be useful in that case.

[riedel]

Can someone describe how to effectively use a cell cache? I guess mostly be weird to cache the output cache like caching _ . So I guess the idea would be to no execute the cell and put a cache on the last line and re-execute any assignment on that happens to be on the last line of the cell?