Add a hint to use a newer uv when a managed Python download is not found (#17461)

## Summary Suggest using a newer uv version when a managed python installation request fails with `NoDownloadFound`. Before: ``` error: No interpreter found for Python ==3.14.* in managed installations or search path ``` After: ``` error: No interpreter found for Python ==3.14.* in managed installations or search path hint: uv embeds available Python downloads and may require an update to install new versions. Consider retrying on a newer version of uv. ``` ## Test Plan Integration test added for this case. --------- Co-authored-by: Zanie Blue <contact@zanie.dev>
2026-01-15 10:58:41 +01:00
parent 0c08cba0c4
commit db7d1a2058
2 changed files with 38 additions and 1 deletions
@@ -159,7 +159,13 @@ impl PythonInstallation {
            Ok(Err(downloads::Error::NoDownloadFound(_))) => {
                if downloads_enabled {
                    debug!("No downloads are available for {request}");
-                    return Err(err);
+                    if matches!(request, PythonRequest::Default | PythonRequest::Any) {
+                        return Err(err);
+                    }
+                    return Err(err.with_missing_python_hint(
+                        "uv embeds available Python downloads and may require an update to install new versions. Consider retrying on a newer version of uv."
+                            .to_string(),
+                    ));
                }
                None
            }