Title: NameError in urllib.request.URLopener.retrieve
Type: behavior Stage: resolved
Components: Library (Lib) Versions: Python 3.8
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: Nosy List: berker.peksag, cheryl.sabella, db3l, xtreak
Priority: normal Keywords: patch

Created on 2019-05-17 16:09 by xtreak, last changed 2019-05-22 02:19 by xtreak. This issue is now closed.

Pull Requests
URL Status Linked Edit
PR 13389 merged xtreak, 2019-05-17 16:15
PR 13422 closed miss-islington, 2019-05-19 13:40
PR 13476 merged berker.peksag, 2019-05-21 22:23
Messages (10)
msg342733 - (view) Author: Karthikeyan Singaravelan (xtreak) * (Python committer) Date: 2019-05-17 16:09
In issue27485 the deprecated functions were replaced with underscore prefixed ones due to which imports where modified. Some of the places where not changed causing NameError in using urllib.request.URLopener.retrieve for local files and non-local files which is deprecated. I found these undefined names while running flake8 on Lib folder. I will raise a PR with tests for the same.

Sample Error : 

Python 3.8.0a4+ (heads/master:870b035bc6, May 17 2019, 16:28:23)
[Clang 7.0.2 (clang-700.1.81)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from urllib.request import URLopener
>>> URLopener().retrieve('file:///tmp/a.txt')
sys:1: DeprecationWarning: URLopener style of invoking requests is deprecated. Use newer urlopen functions/methods
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/karthikeyansingaravelan/stuff/python/cpython/Lib/urllib/", line 1786, in retrieve
    return url2pathname(splithost(url1)[1]), hdrs
NameError: name 'splithost' is not defined
msg342850 - (view) Author: Berker Peksag (berker.peksag) * (Python committer) Date: 2019-05-19 13:40
New changeset c661b30f89ffe7a7995538d3b1649469b184bee4 by Berker Peksag (Xtreak) in branch 'master':
bpo-36948: Fix NameError in urllib.request.URLopener.retrieve (GH-13389)
msg342851 - (view) Author: Berker Peksag (berker.peksag) * (Python committer) Date: 2019-05-19 13:47
Thanks! Apparently, backport to 3.7 isn't needed, so I just closed PR 13422.
msg343103 - (view) Author: David Bolen (db3l) Date: 2019-05-21 21:50
Since this patch was introduced to the 3.x branch my Windows 7 and 10 buildbots have been failing in test_urlopener_retrieve_file.  See for the first such failure on the Win10 worker.

The problem appears to be related to those workers having an explicit TEMP folder that happens to use a lowercase drive letter, causing the test assertion to fail due to differing case in the drive letter.

While I could work around this by changing my builder TEMP definition, the test seems fragile on case-insensitive filesystems, so perhaps it should be comparing a normalized path instead?
msg343108 - (view) Author: Berker Peksag (berker.peksag) * (Python committer) Date: 2019-05-21 22:24
Thank you for the heads up, David. Could you please take a look at PR 13476?
msg343110 - (view) Author: David Bolen (db3l) Date: 2019-05-21 22:30
Yes, PR 13476 tested locally on the Win10 builder resolves the error.
msg343114 - (view) Author: David Bolen (db3l) Date: 2019-05-21 22:37
Oh, and just for historical purposes, it looks like the root cause was that the nturl2path.pathnametourl forces an uppercase drive letter.  So that's where the inconsistency in the test got introduced.
msg343124 - (view) Author: Berker Peksag (berker.peksag) * (Python committer) Date: 2019-05-21 23:00
New changeset 2725cb01d7cbf5caecb51cc20d97ba324b09ce96 by Berker Peksag in branch 'master':
bpo-36948: Fix test_urlopener_retrieve_file on Windows (GH-13476)
msg343125 - (view) Author: Berker Peksag (berker.peksag) * (Python committer) Date: 2019-05-21 23:01
msg343139 - (view) Author: Karthikeyan Singaravelan (xtreak) * (Python committer) Date: 2019-05-22 02:19
Thank you David and Berker.
Date User Action Args
2019-05-22 02:19:02xtreaksetmessages: + msg343139
2019-05-21 23:01:02berker.peksagsetstatus: open -> closed

messages: + msg343125
stage: patch review -> resolved
2019-05-21 23:00:38berker.peksagsetmessages: + msg343124
2019-05-21 22:37:22db3lsetmessages: + msg343114
2019-05-21 22:30:51db3lsetmessages: + msg343110
2019-05-21 22:24:43berker.peksagsetmessages: + msg343108
2019-05-21 22:23:27berker.peksagsetstage: resolved -> patch review
pull_requests: + pull_request13388
2019-05-21 22:11:33berker.peksagsetstatus: closed -> open
2019-05-21 21:50:26db3lsetnosy: + db3l
messages: + msg343103
2019-05-19 13:47:16berker.peksagsetstatus: open -> closed
resolution: fixed
messages: + msg342851

stage: patch review -> resolved
2019-05-19 13:40:23miss-islingtonsetpull_requests: + pull_request13332
2019-05-19 13:40:10berker.peksagsetnosy: + berker.peksag
messages: + msg342850
2019-05-17 16:15:28xtreaksetkeywords: + patch
stage: patch review
pull_requests: + pull_request13297
2019-05-17 16:09:52xtreakcreate