Hanging in View method

[learn_python]

Hello,

I've been recently learning python through a course. Everything works smoothly except when I use view method. Anybody having this problem as well?

I even used a sample code in https://pythonhosted.org/scikit-fuzzy/au...-newapi-py.

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import numpy as np import skfuzzy as fuzz from skfuzzy import control as ctrl   quality = ctrl.Antecedent(np.arange(0, 11, 1), 'quality') service = ctrl.Antecedent(np.arange(0, 11, 1), 'service') tip = ctrl.Consequent(np.arange(0, 26, 1), 'tip')   quality.automf(3) service.automf(3)   tip['low'] = fuzz.trimf(tip.universe, [0, 0, 13]) tip['medium'] = fuzz.trimf(tip.universe, [0, 13, 25]) tip['high'] = fuzz.trimf(tip.universe, [13, 25, 25])   # HERE COMES MY PROBLEM quality['average'].view()

Any advice is greatly appreciated. Thank you!