Some time ago new Pythonista users posted requests to have numpy and other scientific libraries in Pythonista.
Omz kindly answered that the port was hard job mainly due to the need of compiling some fortran code for IOS and ARM.
In my experience numpy setup only needs c compilation. The .f files appear only in the f2py sublibrary of numpy. f2py is needed to translate fortran user code to python and this feature is, of course, no needed in Pythonista. Just comment the f2py line in the numpy setup file.
So I suggest to omz reconsider future inclusion of numpy in Pythonista that would open the door to other packages that need numpy.
I have had a dream....
Thanks for your attention.