Qlik Python SSE - columns not rows

[iulihardt]

Hi!

Follow my starter python function in qlik SSE: 

That function I can call on script and its returns the sum of p1,p2 and p3.

however, I would like to send the all Pn (P1,P2,...,Pn) column to python. So I can return the median of the column or scale the variables p1, p2 and pn ou any othe process I need to do in all column Pn.

Advance in my question and image, some one knows why I need 3 fors in my def to take de row pn?