astral-sh/uv · error · anyhow::Error

Cannot uninstall managed Python for request: {request}

Error message

Cannot uninstall managed Python for request: {request}

What it means

Error "Cannot uninstall managed Python for request: {request}" thrown in astral-sh/uv.

Source

Thrown at crates/uv/src/commands/python/uninstall.rs:84

    printer: Printer,
) -> Result<ExitStatus> {
    let start = std::time::Instant::now();

    let requests = if all {
        vec![PythonRequest::Default]
    } else {
        let targets = targets.into_iter().collect::<BTreeSet<_>>();
        targets
            .iter()
            .map(|target| PythonRequest::parse(target.as_str()))
            .collect::<Vec<_>>()
    };

    let download_requests = requests
        .iter()
        .map(|request| {
            PythonDownloadRequest::from_request(request).ok_or_else(|| {
                anyhow::anyhow!("Cannot uninstall managed Python for request: {request}")
            })
        })
        // Always include pre-releases in uninstalls
        .map(|result| result.map(|request| request.with_prereleases(true)))
        .collect::<Result<Vec<_>>>()?;
    let installed_installations: Vec<_> = installations.find_all()?.collect();
    let mut matching_installations = BTreeSet::default();
    for (request, download_request) in requests.iter().zip(download_requests) {
        if matches!(requests.as_slice(), [PythonRequest::Default]) {
            writeln!(printer.stderr(), "Searching for Python installations")?;
        } else {
            writeln!(
                printer.stderr(),
                "Searching for Python versions matching: {}",
                request.cyan()
            )?;
        }
        let mut found = false;

View on GitHub (pinned to f1a42680ff)

When it happens

Trigger: Thrown at crates/uv/src/commands/python/uninstall.rs:84 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/c83aa82c0e36aab4. Report an issue: GitHub.