Lists of objects aren't being unwrapped recursively?

[kxsystems]

Lists of objects aren't being unwrapped recursively?

[jhanna-kx]

Added .p.xunwrap to do this recursive unwrap in 1.2.0 release

[awilson-kx]

Hey Michael

This was a design/performance decision, as recursive type checking proved too expensive.

When passing arguments using embedPy

• A native q object will be converted as appropriate (int -> int, float-array -> float-array)
• An embedPy object will be unwrapped (exposing the foreign Python object)

Unwrapping of embedPy objects inside q 'containers' (lists, dictionaries, tables etc) will not take place by default.
In most cases, no conversion is even necessary (as the argument consists solely of q data) and the performance hit is too great.

[mcg1969]

Understood. I'd like to suggest, then, that the documentation offer an explicit caution about this (if it doesn't already; I may have missed it!). You've made it quite easy of course to use the backtick to do a "full" unwrapping, so I really don't find it too inconvenient, it's just good to know it's necessary sometimes.