Description

csreddy98

opened on Jun 12, 2023

Issue body actions

Url parser is allowing only 'v' in the IPvFuture. As per the standards the 'v' could be case-insensitive as mentioned here

• urlparse('http://[v1fe.d:9]/') is valid
• urlparse('http://[V1fe.d:9]/') throws ValueError

while http://[V1fe.d:9]/ is also a valid IPvFuture hostname.

Checked in python version 3.11.4

Linked PRs

• gh-105708: 'V' could be case insensitive for IPvFuture hostnames #105709
• [3.15] gh-105708: 'V' could be case insensitive for IPvFuture hostnames (GH-105709) #153138
• [3.14] gh-105708: 'V' could be case insensitive for IPvFuture hostnames (GH-105709) #153139
• [3.13] gh-105708: 'V' could be case insensitive for IPvFuture hostnames (#5709) #153140

Activity

1. csreddy98

   added

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Jun 12, 2023
2. csreddy98

   added 2 commits that reference this issue on Jun 12, 2023

   pythongh-105708: 'V' could be case insensitive for IPvFuture hostnames

   e7054c1

   pythongh-105708: 'V' could be case insensitive for IPvFuture hostname…

   2cf76f8
3. arhadthedev

   added

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

   on Jun 13, 2023
4. serhiy-storchaka

   added this to Urllib issueson Jul 3, 2026
5. github-project-automation

   moved this to Todo in Urllib issueson Jul 3, 2026
6. orsenthil

   added 6 commits that reference this issue on Jul 5, 2026

   pythongh-105708: 'V' could be case insensitive for IPvFuture hostnames

   d140752

   pythongh-105708: 'V' could be case insensitive for IPvFuture hostname…

   529ee95

   gh-105708: 'V' could be case insensitive for IPvFuture hostnames (#10…

   a47a66c

   [3.15] gh-105708: 'V' could be case insensitive for IPvFuture hostnam…

   986322e

   [3.14] gh-105708: 'V' could be case insensitive for IPvFuture hostnam…

   85c58cf

   [3.13] gh-105708: 'V' could be case insensitive for IPvFuture hostnam…

   491d830
7. orsenthil

   closed this as completedon Jul 5, 2026
8. github-project-automation

   moved this from Todo to Done in Urllib issueson Jul 5, 2026

Issue actions