3 d, how to make it

I have noise data from IRIS
Like this
(n,e,z chanels)
How to plot 3 d, third column z
depending on first n and second column e ?
I know only how to make color
isolines for this
The view sample of type of the picture is for
(5) A 3-D illuminated surface (in bw) — GMT 6.2.0rc1 documentation (generic-mapping-tools.org)

With Python ? Something like this ?

I did my task in qtiplot
I shall look , what did you offer.