Inspecting Numpy bool arrays in Var. Explorer uses deprecated '-' operator in Numpy

[GKosiba]

Description of your problem

(..)/site-packages/spyderlib/widgets/arrayeditor.py", line 249, in data
/(self.vmax-self.vmin)
TypeError: numpy boolean subtract, the operator '-', is deprecated, use the bitwise_xor, the '^' operator, or the logical_xor function instead.
What steps will reproduce the problem?

1. import numpy as np
2. test = np.zeros((3,3),dtype='bool')
3. Double click test in variable explorer window

What is the expected output? What do you see instead?
Popup window of the array w/ values. Crash (Seg. Fault)

Please provide any additional information below

Versions and main components

• Spyder Version: 3.1.4
• Python Version: 2.7.5
• Qt Version: 4.8.5
• PyQt Version: 4.11.4
• Operating system: RHEL7

Dependencies

jedi >=0.9.0 : 0.10.2 (OK)
matplotlib >=1.0 : 2.0.2 (OK)
nbconvert >=4.0 : 5.2.1 (OK)
numpy >=1.7 : 1.14.0.dev0+03283c2 (OK)
pandas >=0.13.1 : 0.18.1 (OK)
pep8 >=0.6 : 1.7.0 (OK)
psutil >=0.3 : 5.2.2 (OK)
pyflakes >=0.5.0 : 1.5.0 (OK)
pygments >=2.0 : 2.2.0 (OK)
pylint >=0.25 : 1.7.2 (OK)
qtconsole >=4.2.0: 4.3.0 (OK)
rope >=0.9.4 : 0.10.5 (OK)
sphinx >=0.6.6 : 1.6.2 (OK)
sympy >=0.7.3 : None (NOK)

Please go to the menu entry Help > Optional Dependencies (or
Help > Dependencies), press the button Copy to clipboard
and paste the contents below:

[ccordoba12]

Thanks for reporting. The fix seems simple enough, would you like to submit a pull request for it? If you do, please make your PR against our 3.x branch.