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gh-105708: 'V' could be case insensitive for IPvFuture hostnames #105709

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Merged
orsenthil merged 6 commits into from
Jul 5, 2026
Merged

gh-105708: 'V' could be case insensitive for IPvFuture hostnames #105709

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d140752
gh-105708: 'V' could be case insensitive for IPvFuture hostnames
csreddy98 Jun 12, 2023
529ee95
gh-105708: 'V' could be case insensitive for IPvFuture hostnames & ch…
csreddy98 Jun 12, 2023
d6e7564
📜🤖 Added by blurb_it.
blurb-it[bot] Jun 12, 2023
27f5102
Fix the Merge changing \z to \Z.
orsenthil Jul 5, 2026
d90aa84
Fixed the News Entry.
orsenthil Jul 5, 2026
7d47bab
Fix the lint.
orsenthil Jul 5, 2026
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gh-105708: 'V' could be case insensitive for IPvFuture hostnames
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@csreddy98 @orsenthil
csreddy98 authored and orsenthil committed Jul 5, 2026
commit d140752e5bdd5606115cc5596c3b5e9eef909f41
4 changes: 2 additions & 2 deletions Lib/urllib/parse.py
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Original file line number Diff line number Diff line change
Expand Up @@ -544,8 +544,8 @@ def _check_bracketed_netloc(netloc):
# Valid bracketed hosts are defined in
# https://www.rfc-editor.org/rfc/rfc3986#page-49 and https://url.spec.whatwg.org/
def _check_bracketed_host(hostname):
if hostname.startswith('v'):
if not re.match(r"\Av[a-fA-F0-9]+\..+\z", hostname):
if hostname[0].lower() == 'v':
if not re.match(r"\A[vV][a-fA-F0-9]+\..+\Z", hostname):
raise ValueError(f"IPvFuture address is invalid")
else:
ip = ipaddress.ip_address(hostname) # Throws Value Error if not IPv6 or IPv4
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