human
I wrote the below code

    def version_to_tuple(v):
        if (v[0].lower() == u'v'):
            v = v[1:]
        return version.StrictVersion(v)
    av = version_to_tuple(a)
    bv = version_to_tuple(b)
    return ((av > bv) - (av < bv))

What's a good function header?

=====
Here's a good function header?
assistant
#Here's a good function header.

def version_compare(a, b):