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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _cmp_version(item1, item2):
    '''
    Compare function for package version sorting
    '''
    vers1 = _LooseVersion(item1)
    vers2 = _LooseVersion(item2)

    if vers1 < vers2:
        return -1
    if vers1 > vers2:
        return 1
    return 0