def download(url):
    import urllib.request
    with urllib.request.urlopen(url) as fin:
        with open(fin.headers.get_filename(), 'wb') as fout:
            fout.write(fin.read())
 
 
if __name__ == '__main__':
 
    url = 'https://rex8312.net/doku.php?do=export_code&id=alpharank:example&codeblock=0'
    download(url)