urllib HTTPS request:

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Question :

urllib HTTPS request: <urlopen error unknown url type: https>

I have a script on python3.4 and it has been fine until the website I download the file from decides to use https and now I am getting error but can’t figure out how I can retrive the file.

My script import the following library and uses the urlretrive to get the file previously. Since it is now forwarded to https with 302 redirection. I am getting some error.

import urllib
import urllib.request

urllib.request.urlretrieve("http://wordpress.org/latest.tar.gz", "/thefile.gz")

My error:-

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.4/urllib/request.py", line 178, in urlretrieve
    with contextlib.closing(urlopen(url, data)) as fp:
  File "/usr/local/lib/python3.4/urllib/request.py", line 153, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/local/lib/python3.4/urllib/request.py", line 461, in open
    response = meth(req, response)
  File "/usr/local/lib/python3.4/urllib/request.py", line 571, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/local/lib/python3.4/urllib/request.py", line 493, in error
    result = self._call_chain(*args)
  File "/usr/local/lib/python3.4/urllib/request.py", line 433, in _call_chain
    result = func(*args)
  File "/usr/local/lib/python3.4/urllib/request.py", line 676, in http_error_302
    return self.parent.open(new, timeout=req.timeout)
  File "/usr/local/lib/python3.4/urllib/request.py", line 455, in open
    response = self._open(req, data)
  File "/usr/local/lib/python3.4/urllib/request.py", line 478, in _open
    'unknown_open', req)
  File "/usr/local/lib/python3.4/urllib/request.py", line 433, in _call_chain
    result = func(*args)
  File "/usr/local/lib/python3.4/urllib/request.py", line 1257, in unknown_open
    raise URLError('unknown url type: %s' % type)
urllib.error.URLError: <urlopen error unknown url type: https>
Asked By: Adi Wong


Answer #1:

Most likely your Python installation or operating system is broken.

Python has only support for HTTPS if it was compiled with HTTPS support. However, this should be the default for all sane installations.

HTTPS support is only available if the socket module was compiled with SSL support.


Please clarify how you installed Python. Official Python distributions are available at python.org

Answered By: Mikko Ohtamaa

Answer #2:

I had the same problem with Anaconda but after installing the OpenSSL package, it works well.

conda install -c anaconda openssl
Answered By: Farshad Hasanpour

Answer #3:

Had this issue, and it was solved by upgrading Python with

brew upgrade python
Answered By: moyo

Answer #4:

For me the error was resolved by downloading the correct version of openssl.

I was using python 3.7.5 32 bit version on windows 10 machine.

  1. goto
    https://slproweb.com/products/Win32OpenSSL.html and download Win32 OpenSSL v1.1.1h
    EXE | MSI 54MB Installer version . I used 32 bit as my python interpreter was 32 bit.

  2. Install and run.

Issue fixed 🙂

Answered By: Nitin Barthwal

Answer #5:

for HTTP
people who encountered the error
ValueError: unknown url type: 'http
ValueError: unknown url type: b'http

while opening some url like below with urllib.request.Request

just change localhost to

looks like Request method is looking for a domain.something in url

Answered By: Khalid

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