A question about class PathBuilder

[HPDell]

This is the getPathsBetweenCollections function of class PathBuilder:

def getPathsBetweenCollections(self, sc1, sc2):
    trans1 = []
    trans2 = []
    paths = []
    n1 = len(sc1.states)
    n2 = len(sc2.states)
    num_paths = 0
    for i1 in range(n1):
        for i2 in range(n2):
            ps = self.getPaths(sc1.states[i1], sc2.states[i2])
            for path in ps:
                trans1.append((i1, num_paths))
                trans2.append((num_paths, i2))
                paths.append(path)
                num_paths += 1
    return (trans1, paths, trans2)

Why the variable num_paths don't need to be set to 0 when variable ps is changed?

[tjhunter]

Hello, I have moved on from this research area and I do not support this repository anymore. Good luck with your current project.