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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 netloc_no_www(url):
 """ For a given URL return the netloc with any www. striped. """

    ext = tldextract.extract(url)
    if ext.subdomain and ext.subdomain != 'www':
        return '%s.%s.%s' % (ext.subdomain, ext.domain, ext.tld) 
    else:
        return '%s.%s' % (ext.domain, ext.tld)