Summary

When using the uv python pin --global command, it currently requires a specific Python version to be provided. As opposed to showing an error: "No pinned Python version found," it would be more user-friendly if the command could automatically determine and use the latest available Python version or the version currently selected in the current project (if a .python-version file exists).

Steps to Reproduce

1. Run uv python pin --global without specifying a version.
2. Observe the error message: "No pinned Python version found."

Expected Behavior

• If no version is specified, uv python pin --global should:
  • Check for the latest available Python version and use that.
  • Alternatively, if a .python-version file exists in the current project, use the version specified in that file.

Actual Behavior

• The command fails with the error message "No pinned Python version found" and requires a specific version to be provided.

System Information
UV Version: 0.7.11
Python Version: 3.13
Operating System: Linux

Related Documentation
UV Python Version Management
UV Install Python Guide

Thank you for considering this enhancement!

Example

• Use Case: Users often want to set a global Python version that matches their current project or the latest available version without having to manually specify it each time.
• Proposed Solution:
  • Add a flag to automatically determine the latest version or use the current project's version.
  • Example: uv python pin --global --latest to use the latest available version.
  • Example: uv python pin --global --set-current-to-global to use the version specified in the current project's .python-version file.