Description

assignee = None
closed_at = None
created_at = <Date 2020-05-18.21:30:13.142>
labels = ['type-feature', 'library', '3.11']
title = 'remove deprecated urllib.request.URLopener/FancyURLopener'
updated_at = <Date 2021-11-23.13:31:04.736>
user = 'https://github.com/PetterS'

activity = <Date 2021-11-23.13:31:04.736>
actor = 'vstinner'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-05-18.21:30:13.142>
creator = 'Petter S'
dependencies = []
files = []
hgrepos = []
issue_num = 40673
keywords = []
message_count = 7.0
messages = ['369291', '369293', '369294', '369295', '369300', '369886', '406839']
nosy_count = 4.0
nosy_names = ['vstinner', 'Petter S', 'remi.lapeyre', 'Ido Michael']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue40673'
versions = ['Python 3.11']

Activity

1. PetterS commented on May 18, 2020

   

   PetterSmannequin

   on May 18, 2020

   MannequinAuthor

   More actions

   The following code crashes with TypeError:

   URLopener().open("unknown_proxy://test")

   the expected behavior is an OSError, which is normally raised for unknown protocols.

   This implementation of directly calling a method called "unknown_proxy" is fragile and was recently the subject of a security issue: https://bugs.python.org/issue35907 (CVE-2019-9948)

   Would be good to make this more robust.
2. PetterS

   added

   3.7 (EOL)end of lifeend of life

   3.8 (EOL)end of lifeend of life

   3.9 (EOL)end of lifeend of life

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   type-featureA feature request or enhancementA feature request or enhancement

   on May 18, 2020
3. PetterS

   changed the title [-]UrlOpener raises different exceptions based on implementation detail[/-] [+]urllib.request.URLopener raises different exceptions based on implementation detail[/+] on May 18, 2020
4. PetterS

   changed the title [-]UrlOpener raises different exceptions based on implementation detail[/-] [+]urllib.request.URLopener raises different exceptions based on implementation detail[/+] on May 18, 2020
5. PetterS commented on May 18, 2020

   

   PetterSmannequin

   on May 18, 2020

   MannequinAuthor

   More actions

   I can fix this, but it does not have high priority.
6. remilapeyre commented on May 18, 2020

   

   remilapeyremannequin

   on May 18, 2020

   Mannequin

   More actions

   URLOpener has been deprecated since Python3.3 (https://github.com/python/cpython/blob/master/Lib/urllib/request.py#L1703-L1705) maybe it should just be removed from the codebase?
7. 14 remaining items
8. ezio-melotti

   transferred this issue fromon Apr 10, 2022
9. barneygale

   added a commit that references this issue on Oct 20, 2024

   pythonGH-84850: Remove `urllib.request.URLopener` and `FancyURLopener`

   2b3f775
10. barneygale

    added a commit that references this issue on Oct 29, 2024

    Merge branch 'main' into pythongh-84850

    ea17ffc
11. hugovk

    added a commit that references this issue on Nov 19, 2024

    GH-84850: Remove `urllib.request.URLopener` and `FancyURLopener` (#12…

    4d77197
12. hugovk commented on Nov 19, 2024

    

    hugovk

    on Nov 19, 2024

    Member

    More actions

    They've been removed in #125739.

    TODO:

    I think that we should provide some hints on how to replace code using removed APIs. Give some examples maybe?

    #125739 (comment)
13. barneygale

    added a commit that references this issue on Nov 19, 2024

    pythonGH-84850: Improve whatsnew entry for `[Fancy]URLopener` depreca…

    cd4a191
14. hugovk

    added a commit that references this issue on Nov 20, 2024

    GH-84850: Improve whatsnew entry for `[Fancy]URLopener` removal (#127032

    9d2a879
15. barneygale commented on Nov 20, 2024

    

    barneygale

    on Nov 20, 2024

    Contributor

    More actions

    urllib.request.URLopener and FancyURLopener are removed in Python 3.14. Thanks all.

    Reacted by Hugo van Kemenade
16. barneygale

    closed this as completedon Nov 20, 2024
17. hroncok

    added a commit that references this issue on Nov 22, 2024

    Python 3.14 removed the URLopener and FancyURLopener classes from url…

    1fbfc29
18. benjaminp

    added a commit that references this issue on Dec 1, 2024

    Python 3.14 removed the URLopener and FancyURLopener classes from url…

    9a05aab
19. ebonnal

    added 2 commits that reference this issue on Jan 12, 2025

    pythonGH-84850: Remove `urllib.request.URLopener` and `FancyURLopener` (

    21980f6

    pythonGH-84850: Improve whatsnew entry for `[Fancy]URLopener` removal (…

    0b32dc0
20. jollaitbot

    added 2 commits that reference this issue on Sep 26, 2025

    fix(m2urllib): don't fail with missing urllib.request.URLopener

    27cf840

    fix(m2urllib): don't fail with missing urllib.request.URLopener

    378d2a2

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