Python-сообщество

url_page= "//upload.wikimedia.org/"
if(url_page.startswith('//')):
            while url_page.startswith('/'):
                url_page = url_page[1:]
            print(url_page)
            if url_page.find('://') != -1:
                a, b = url_page.split('://')
                if b.lower().startswith('www.'):
                    result = (a + '://', 'www.', b.split('/', 1)[0][4:] + '/')
                else:
                    result = (a + '://', 'www.', b.split('/', 1)[0] + '/')
                    print(url_page)
                else:
                url_page="http://"+url_page
                a, b = url_page.split('://')
                if b.lower().startswith('www.'):
                    result = (a + '://', 'www.', b.split('/', 1)[0][4:] + '/')
                else:
                    result = (a + '://', 'www.', b.split('/', 1)[0] + '/')
                    print(url_page)
elif(url_page.startswith('/')):
                while url_site.endswith('/'):
                        url_site = url_site[:-1]
                print(url_page)
else:
                print(url_page)

        url_a, url_b = url.split('://')
        if url_b.lower().startswith('www.'):
                result = (url_a + '://', 'www.', url_b.split('/', 1)[0][4:] + '/')
        else:
                result = (url_a + '://', 'www.', url_b.split('/', 1)[0] + '/')

url_a, url_b = url.split('://')
if url_b.lower().startswith('www.'):
    result = (url_a + '://', 'www.', url_b.split('/', 1)[0][4:] + '/', url_b.split('/', 1)[1])
else:
    result = (url_a + '://', 'www.', url_b.split('/', 1)[0] + '/', url_b.split('/', 1)[1])

url_a, url_b = url.split('://')
url_b = url_b.split('/', 1)
if url_b[0].lower().startswith('www.'):
    result = (url_a + '://', 'www.', url_b[0][4:] + '/', url_b[1])
else:
    result = (url_a + '://', 'www.', url_b[0] + '/', url_b[1])

url_a = url.split('/', 3)
result = (url_a[0] + '//', 'www.', url_a[2][4 * url_a[2].lower().startswith('www.'):] + '/', url_a[3])

url_site = '{0}/{1}/{2}/'.format(*url_page.split('/'))

url_site = (url_page+'/')[:url_page.find('/', url_page.index('/')+2)]