compare_versions.py

def compareVersion(version1, version2):
    p1 = map(int, version1.split("."))
    p2 = map(int, version2.split("."))

    d  = len(p1)-len(p2)
    p1 += [0] * (-d)
    p2 += [0] * (d)

    for i in range(len(p1)):
        if p1[i] > p2[i]:
            return 1
        if p1[i] < p2[i]:
            return -1

    return 0