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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 parse_url(url):
 """Return a clean URL. Remove the prefix for the Auth URL if Found. :param url: :return aurl: """

    if url.startswith(('http', 'https', '//')):
        if url.startswith('//'):
            return urlparse.urlparse(url, scheme='http')
        else:
            return urlparse.urlparse(url)
    else:
        return urlparse.urlparse(urlparse.urljoin('http://', url))