Rotate button does not work on Mac OS

[ingo-m]

On Mac, the Rotate button does not work.

Tested with following system/environment configuration:

Package	Version
Mac OS	10.12.6.
numpy	1.11.3
scipy	0.19.0
matplotlib	2.0.2
nibabel	2.1.0

This is the output after loading an nii image and clicking the Rotate button:

segmentator mp2rage_t1w.nii
=================
Segmentator 1.3.0
=================
Traceback (most recent call last):
  File "/Users/john/miniconda2/envs/py_main/lib/python2.7/site-packages/matplotlib/backend_bases.py", line 1940, in button_release_event
    self.callbacks.process(s, event)
  File "/Users/john/miniconda2/envs/py_main/lib/python2.7/site-packages/matplotlib/cbook.py", line 554, in process
    proxy(*args, **kwargs)
  File "/Users/john/miniconda2/envs/py_main/lib/python2.7/site-packages/matplotlib/cbook.py", line 416, in __call__
    return mtd(*args, **kwargs)
  File "/Users/john/miniconda2/envs/py_main/lib/python2.7/site-packages/matplotlib/widgets.py", line 229, in _release
    func(event)
  File "build/bdist.macosx-10.6-x86_64/egg/segmentator/gui_utils.py", line 359, in changeRotation
  File "build/bdist.macosx-10.6-x86_64/egg/segmentator/gui_utils.py", line 352, in rotateIma90
TypeError: rot90() got an unexpected keyword argument 'axes'

[ofgulban]

This error comes up because you have used an outdated numpy version.

[ingo-m]

Yes I can confirm this, after updating to numpy version 1.13.3 the problem does not occur any more.