Repository navigation
uv publish --check-url fails for missing package 404 #19459
Description
Activity
I'm not 100% sure we should upload the package in that case -- it's not correct for a simple index to respond with
text/plain(per the specs, it MUST respond with one of an HTML or JSON content type that we understand, including one of thevnd.pypiones).Could you share an MRE for this? It would be helpful to have a public link to a GitLab index that demonstrates this content type.
(Note that this isn't related to 404 handling; the actual error here is in our content-type expectation.)
@woodruffw, thank you for the response. You're right, I didn't read the error carefully.
Actually I noticed that GitLab redirects to PyPI, so the example is just
Actually I noticed that GitLab redirects to PyPI, so the example is just
That doesn't reproduce:
% curl -s -I https://pypi.org/simple/uv/ | grep content-type content-type: text/html x-content-type-options: nosniffOh hmm, it reproduces for the 404 case:
% curl -s -I https://pypi.org/simple/non-existent/ | grep content-type content-type: text/plain; charset=UTF-8 x-content-type-options: nosniffI'm surprised we don't handle the 404 case specially. I'll defer to @konstin for that 🙂
- added a commit that references this issue
on May 28, 2026
Summary
uv publish --check-urlfails within GitLab when the package doesn't exist. It should just upload the package in that case and not fail.
Platform
Linux 7.0.5-arch1-1 x86_64 GNU/Linux
Version
uv 0.11.14 (3fdfdc7 2026-05-12 x86_64-unknown-linux-gnu)
Python version
Python 3.13.12