uv publish --check-url fails for missing package 404 #19459

Activity

1. peter-facko

   added

   bugSomething isn't workingSomething isn't working

   on May 18, 2026
2. zanieb

   assigned

   konstin

   on May 18, 2026
3. woodruffw commented on May 18, 2026

   

   woodruffw

   on May 18, 2026

   Member

   More actions

   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 the vnd.pypi ones).

   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.)
4. woodruffw

   added

   needs-mreNeeds more information for reproduction, see #9452Needs more information for reproduction, see #9452

   on May 18, 2026
5. peter-facko commented on May 18, 2026

   

   peter-facko

   on May 18, 2026

   Author

   More actions

   @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

   • https://pypi.org/simple/
   • https://pypi.org/simple/uv/
   • https://pypi.org/simple/non-existent/
6. woodruffw commented on May 18, 2026

   

   woodruffw

   on May 18, 2026

   Member

   More actions

   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: nosniff
   
7. woodruffw commented on May 18, 2026

   

   woodruffw

   on May 18, 2026

   Member

   More actions

   Oh 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: nosniff
   

   I'm surprised we don't handle the 404 case specially. I'll defer to @konstin for that 🙂
8. konstin

   closed this as completedin #19594on May 28, 2026
9. konstin

   added a commit that references this issue on May 28, 2026

   Support redirects in `--check-url` (#19594)

   ...

   This issue will close once commit 5a0b932 is merged into the 'main' branch.

   5a0b932