error while running kmos view

[PGaneshIyer]

Expected behavior

I expected a GUI to pop up.

Actual behavior

Instead I got this error:

mac95467:myfirst_kmc_local_smart g5q$ kmos view
Warning: GTK not available. Cannot run graphical front-end
No module named gtk
Could not import matplotlib frontend for real-time plotting
Gtk* backend requires pygtk to be installed.
kiwi Validation not working.
RuntimeError: module compiled against API version 0xa but this version of numpy is 0x9
Error: numpy.core.multiarray failed to import
Could not find the kmc module. The kmc implements the actual
kmc model. This can be created from a kmos xml file using
kmos export
Hint: are you in a directory containing a compiled kMC model?

Traceback (most recent call last):
File "/usr/local/bin/kmos", line 21, in
main()
File "/Users/g5q/Library/Python/2.7/lib/python/site-packages/kmos/cli.py", line 425, in main
from kmos import view
File "/Users/g5q/Library/Python/2.7/lib/python/site-packages/kmos/view.py", line 59, in
class ParamSlider(gtk.HScale):
NameError: name 'gtk' is not defined

I have GTK, matplotlib installed. See below where I can load them when I fire-up ipython in the same terminal. I also have the *.so file in the directory:
mac95467:myfirst_kmc_local_smart g5q$ ls
kmc_model.so kmc_settings.py kmc_settings.pyc src

Any idea what the problem might be?

mac95467:myfirst_kmc_local_smart g5q$ ipython
Python 2.7.12 (default, Oct 11 2016, 14:42:58)
Type "copyright", "credits" or "license" for more information.

IPython 5.1.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.

In [1]: import numpy as np

In [2]: import scipy as sp

In [3]: import matplotlib as gp

In [4]: import pygtk as pg

In [5]:

Steps to reproduce the issue

System information

• result of kmos version, operating system, version, python version, possibly link to model file