potiuk commented on PR #67034:
URL: https://github.com/apache/airflow/pull/67034#issuecomment-4466829789

   > Interesting this only happens in Py 3.13
   
   Because this is a race condition. It really depends on the sequence of 
installation:
   
   If you look here:
   
   <img width="411" height="298" alt="Screenshot 2026-05-16 at 14 14 52" 
src="https://github.com/user-attachments/assets/fd753309-1f24-48d0-9a85-10e2d61fc957";
 />
   
   Both: `typer` and `typer-slim` were downgraded. And since uv installs 
packages in highly parallel fashion, it really depends on what was the sequence 
of installation
   
   Case 1) typer-slim -> typer  -> all ok because `typer` installation 
overrides the old `typer-slim` distribution (which has it's own `typer` package 
- in a very old version
   
   Case 2) typer -> typer-slim -> fail, because the new "typer" package is 
overwritten by very old `typer` package coming from the old `typer-slim`
   
   
   


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