.

crates/uv-python/Cargo.toml

@@ -56,6 +56,7 @@ sys-info = { workspace = true }
 target-lexicon = { workspace = true }
 tempfile = { workspace = true }
 thiserror = { workspace = true }
+traversable-error = { workspace = true }
 tokio = { workspace = true }
 tokio-util = { workspace = true, features = ["compat"] }
 tracing = { workspace = true }

crates/uv-python/src/discovery.rs

@@ -175,7 +175,7 @@ type FindPythonResult = Result<PythonInstallation, PythonNotFound>;
 /// The result of failed Python installation discovery.
 ///
 /// See [`FindPythonResult`].
-#[derive(Clone, Debug, Error, traversable_error::TraversableError)]
+#[derive(Clone, Debug, traversable_error::TraversableError, Error)]
 pub struct PythonNotFound {
     pub request: PythonRequest,
     pub python_preference: PythonPreference,
@@ -209,7 +209,7 @@ pub enum PythonSource {
     ParentInterpreter,
 }
 
-#[derive(Error, traversable_error::TraversableError, Debug)]
+#[derive(traversable_error::TraversableError, Error, Debug)]
 pub enum Error {
     #[error(transparent)]
     Io(#[from] io::Error),

crates/uv-python/src/downloads.rs

@@ -38,7 +38,7 @@ use crate::platform::{self, Arch, Libc, Os};
 use crate::PythonVariant;
 use crate::{Interpreter, PythonRequest, PythonVersion, VersionRequest};
 
-#[derive(Error, Debug)]
+#[derive(traversable_error::TraversableError, Error, Debug)]
 pub enum Error {
     #[error(transparent)]
     Io(#[from] io::Error),
@@ -1042,7 +1042,7 @@ impl Error {
     pub(crate) fn from_reqwest_middleware(url: Url, err: reqwest_middleware::Error) -> Self {
         match err {
             reqwest_middleware::Error::Middleware(error) => {
-                Self::NetworkMiddlewareError(url, error)
+                Self::NetworkMiddlewareError(url, error.into())
             }
             reqwest_middleware::Error::Reqwest(error) => {
                 Self::NetworkError(url, WrappedReqwestError::from(error))

crates/uv-python/src/environment.rs

@@ -33,13 +33,13 @@ struct PythonEnvironmentShared {
 /// The result of failed environment discovery.
 ///
 /// Generally this is cast from [`PythonNotFound`] by [`PythonEnvironment::find`].
-#[derive(Clone, Debug, Error, traversable_error::TraversableError)]
+#[derive(Clone, Debug, traversable_error::TraversableError, Error)]
 pub struct EnvironmentNotFound {
     request: PythonRequest,
     preference: EnvironmentPreference,
 }
 
-#[derive(Clone, Debug, Error, traversable_error::TraversableError)]
+#[derive(Clone, Debug, traversable_error::TraversableError, Error)]
 pub struct InvalidEnvironment {
     path: PathBuf,
     pub kind: InvalidEnvironmentKind,

crates/uv-python/src/implementation.rs

@@ -4,7 +4,7 @@ use std::{
 };
 use thiserror::Error;
 
-#[derive(Error, traversable_error::TraversableError, Debug)]
+#[derive(traversable_error::TraversableError, Error, Debug)]
 pub enum Error {
     #[error("Unknown Python implementation `{0}`")]
     UnknownImplementation(String),

crates/uv-python/src/installation.rs

@@ -253,7 +253,7 @@ impl PythonInstallation {
     }
 }
 
-#[derive(Error, traversable_error::TraversableError, Debug)]
+#[derive(traversable_error::TraversableError, Error, Debug)]
 pub enum PythonInstallationKeyError {
     #[error("Failed to parse Python installation key `{0}`: {1}")]
     ParseError(String, String),

crates/uv-python/src/interpreter.rs

@@ -598,7 +598,7 @@ impl ExternallyManaged {
     }
 }
 
-#[derive(Debug, Error, traversable_error::TraversableError)]
+#[derive(Debug, traversable_error::TraversableError, Error)]
 pub struct UnexpectedResponseError {
     #[source]
     pub(super) err: serde_json::Error,
@@ -636,7 +636,7 @@ impl Display for UnexpectedResponseError {
     }
 }
 
-#[derive(Debug, Error, traversable_error::TraversableError)]
+#[derive(Debug, traversable_error::TraversableError, Error)]
 pub struct StatusCodeError {
     pub(super) code: ExitStatus,
     pub(super) stdout: String,
@@ -673,7 +673,7 @@ impl Display for StatusCodeError {
     }
 }
 
-#[derive(Debug, Error, traversable_error::TraversableError)]
+#[derive(Debug, traversable_error::TraversableError, Error)]
 pub enum Error {
     #[error("Failed to query Python interpreter")]
     Io(#[from] io::Error),
@@ -701,7 +701,7 @@ pub enum Error {
     Encode(#[from] rmp_serde::encode::Error),
 }
 
-#[derive(Debug, Error, traversable_error::TraversableError)]
+#[derive(Debug, traversable_error::TraversableError, Error)]
 pub struct BrokenSymlink {
     pub path: PathBuf,
     /// Whether the interpreter path looks like a virtual environment.
@@ -735,7 +735,7 @@ enum InterpreterInfoResult {
     Success(Box<InterpreterInfo>),
 }
 
-#[derive(Debug, Error, traversable_error::TraversableError, Deserialize, Serialize)]
+#[derive(Debug, traversable_error::TraversableError, Error, Deserialize, Serialize)]
 #[serde(tag = "kind", rename_all = "snake_case")]
 pub enum InterpreterInfoError {
     #[error("Could not detect a glibc or a musl libc (while running on Linux)")]

crates/uv-python/src/lib.rs

@@ -63,7 +63,7 @@ pub(crate) fn current_dir() -> Result<std::path::PathBuf, std::io::Error> {
         .unwrap_or(std::env::current_dir())
 }
 
-#[derive(Debug, Error, traversable_error::TraversableError)]
+#[derive(Debug, traversable_error::TraversableError, Error)]
 pub enum Error {
     #[error(transparent)]
     Io(#[from] std::io::Error),

crates/uv-python/src/libc.rs

@@ -14,7 +14,7 @@ use thiserror::Error;
 use tracing::trace;
 use uv_fs::Simplified;
 
-#[derive(Debug, Error, traversable_error::TraversableError)]
+#[derive(Debug, traversable_error::TraversableError, Error)]
 pub enum LibcDetectionError {
     #[error("Could not detect either glibc version nor musl libc version, at least one of which is required")]
     NoLibcFound,

crates/uv-python/src/macos_dylib.rs

@@ -31,7 +31,7 @@ pub fn patch_dylib_install_name(dylib: PathBuf) -> Result<(), Error> {
     Ok(())
 }
 
-#[derive(thiserror::Error, Debug)]
+#[derive(traversable_error::TraversableError, thiserror::Error, Debug)]
 pub enum Error {
     #[error(transparent)]
     Io(#[from] std::io::Error),

crates/uv-python/src/managed.rs

@@ -27,7 +27,7 @@ use crate::platform::{Arch, Libc, Os};
 use crate::python_version::PythonVersion;
 use crate::{macos_dylib, sysconfig, PythonRequest, PythonVariant};
 
-#[derive(Error, traversable_error::TraversableError, Debug)]
+#[derive(traversable_error::TraversableError, Error, Debug)]
 pub enum Error {
     #[error(transparent)]
     Io(#[from] io::Error),

crates/uv-python/src/platform.rs

@@ -5,7 +5,7 @@ use std::ops::Deref;
 use std::{fmt, str::FromStr};
 use thiserror::Error;
 
-#[derive(Error, traversable_error::TraversableError, Debug)]
+#[derive(traversable_error::TraversableError, Error, Debug)]
 pub enum Error {
     #[error("Unknown operating system: {0}")]
     UnknownOs(String),

crates/uv-python/src/sysconfig/mod.rs

@@ -381,7 +381,7 @@ fn patch_pkgconfig(contents: &str) -> Option<String> {
     }
 }
 
-#[derive(thiserror::Error, Debug)]
+#[derive(traversable_error::TraversableError, thiserror::Error, Debug)]
 pub enum Error {
     #[error(transparent)]
     Io(#[from] std::io::Error),

crates/uv-python/src/sysconfig/parser.rs

@@ -249,7 +249,7 @@ const fn is_python_whitespace(c: char) -> bool {
     )
 }
 
-#[derive(thiserror::Error, Debug)]
+#[derive(traversable_error::TraversableError, thiserror::Error, Debug)]
 pub enum Error {
     #[error("Missing opening brace")]
     MissingOpenBrace,

crates/uv-python/src/virtualenv.rs

@@ -48,7 +48,7 @@ pub struct PyVenvConfiguration {
     pub(crate) version: Option<PythonVersion>,
 }
 
-#[derive(Debug, Error, traversable_error::TraversableError)]
+#[derive(Debug, traversable_error::TraversableError, Error)]
 pub enum Error {
     #[error(transparent)]
     Io(#[from] io::Error),

crates/uv-python/src/windows_registry.rs

@@ -125,7 +125,7 @@ fn read_registry_entry(company: &str, tag: &str, tag_key: &Key) -> Option<Window
     })
 }
 
-#[derive(Debug, Error, traversable_error::TraversableError)]
+#[derive(Debug, traversable_error::TraversableError, Error)]
 pub enum ManagedPep514Error {
     #[error("Windows has an unknown pointer width for arch: `{_0}`")]
     InvalidPointerSize(Arch),