Latest version of matplotlib has removed matplotlib.mlab.find

[imcslatte]

matplotlib.mlab.find has been removed in Matplotlib version 3.1.1. Causing a failure in tracpy_class.py.

Eli Hunter
Rutgers University

[bilgetutak]

Adding the below function 'find', as defined previously in Matplotlib in to the tools.py will help.

def find(condition):
        res, = np.nonzero(np.ravel(condition))
        return res