http.client.InvalidURL: URL can't contain control characters.

[hassantarabai]

Hello,

While using this command : python3 download_ko.py --org test.org --out KEGG-KO --concurrent 10

am getting thr following error:
"Traceback (most recent call last):
File "/usr/lib/python3.6/multiprocessing/pool.py", line 119, in worker
result = (True, func(*args, **kwds))
File "download_ko.py", line 37, in download
file = urllib.request.urlopen("http://www.kegg.jp/kegg-bin/download_htext?htext=%s&format=htext&filedir=" % id)
File "/usr/lib/python3.6/urllib/request.py", line 223, in urlopen
return opener.open(url, data, timeout)
File "/usr/lib/python3.6/urllib/request.py", line 526, in open
response = self._open(req, data)
File "/usr/lib/python3.6/urllib/request.py", line 544, in _open
'_open', req)
File "/usr/lib/python3.6/urllib/request.py", line 504, in _call_chain
result = func(*args)
File "/usr/lib/python3.6/urllib/request.py", line 1353, in http_open
return self.do_open(http.client.HTTPConnection, req)
File "/usr/lib/python3.6/urllib/request.py", line 1325, in do_open
encode_chunked=req.has_header('Transfer-encoding'))
File "/usr/lib/python3.6/http/client.py", line 1285, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1296, in _send_request
self.putrequest(method, url, **skips)
File "/usr/lib/python3.6/http/client.py", line 1139, in putrequest
raise InvalidURL(f"URL can't contain control characters. {url!r} "
http.client.InvalidURL: URL can't contain control characters. '/kegg-bin/download_htext?htext=<a href='/kegg-bin/show_organism?org=aaa' id="aaa">aaa00001.keg&format=htext&filedir=' (found at least ' ')
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "download_ko.py", line 114, in
main()
File "download_ko.py", line 110, in main
download_ko([i[0] for i in orgs], args.out, args.concurrent)
File "download_ko.py", line 69, in download_ko
returns.append(result.get())
File "/usr/lib/python3.6/multiprocessing/pool.py", line 644, in get
raise self._value
http.client.InvalidURL: URL can't contain control characters. '/kegg-bin/download_htext?htext=<a href='/kegg-bin/show_organism?org=aaa' id="aaa">aaa00001.keg&format=htext&filedir=' (found at least ' ')"

Kindly, any idea how to resolve it?

Thank you