astral-sh/uv · error

Failed to query Ruff version

Error message

Failed to query Ruff version

What it means

Error "Failed to query Ruff version" thrown in astral-sh/uv.

Source

Thrown at crates/uv/src/commands/project/format.rs:87

                        | WorkspaceErrorKind::NonWorkspace(_)
                ) =>
            {
                project_dir.to_owned()
            }
            Err(err) => return Err(err.into()),
        }
    };

    // Determine the version to use and get the path to Ruff.
    let ruff_path = if let Some(ruff_path) = ruff_path {
        if show_version {
            let output = Command::new(&ruff_path)
                .arg("--version")
                .output()
                .await
                .context("Failed to query Ruff version")?;
            if !output.status.success() {
                anyhow::bail!("Failed to query Ruff version");
            }
            write!(
                printer.stderr(),
                "{}",
                String::from_utf8_lossy(&output.stdout)
            )?;
        }
        ruff_path
    } else {
        let retry_policy = client_builder.retry_policy();
        // Python downloads are performing their own retries to catch stream errors, disable the
        // default retries to avoid the middleware from performing uncontrolled retries.
        let client = client_builder.retries(0).build()?;

        let reporter = BinaryDownloadReporter::single(printer);
        let bin_version = version
            .as_deref()
            .map(BinVersion::from_str)

View on GitHub (pinned to f1a42680ff)

When it happens

Trigger: Thrown at crates/uv/src/commands/project/format.rs:87 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of astral-sh/uv@f1a42680ff (2026-08-16). Data as JSON: /api/errors/6cd7369e8798b27f. Report an issue: GitHub.