Move parsing http retries to EnvironmentOptions (#16284)

## Summary
- Move  parsing `UV_HTTP_RETRIES` to `EnvironmentOptions`

Relates https://github.com/astral-sh/uv/issues/14720

## Test Plan

- Tests with existing tests

Cargo.lock

@@ -5291,7 +5291,6 @@ dependencies = [
  "predicates",
  "regex",
  "reqwest",
- "reqwest-retry",
  "rkyv",
  "rustc-hash",
  "self-replace",
@@ -6605,6 +6604,7 @@ dependencies = [
  "tracing",
  "url",
  "uv-cache-info",
+ "uv-client",
  "uv-configuration",
  "uv-dirs",
  "uv-distribution-types",

crates/uv-client/src/base_client.rs

@@ -44,7 +44,6 @@ use crate::middleware::OfflineMiddleware;
 use crate::tls::read_identity;
 use crate::{Connectivity, WrappedReqwestError};
 
-/// Do not use this value directly outside tests, use [`retries_from_env`] instead.
 pub const DEFAULT_RETRIES: u32 = 3;
 
 /// Maximum number of redirects to follow before giving up.
@@ -154,11 +153,13 @@ impl BaseClientBuilder<'_> {
         allow_insecure_host: Vec<TrustedHost>,
         preview: Preview,
         timeout: Duration,
+        retries: u32,
     ) -> Self {
         Self {
             preview,
             allow_insecure_host,
             native_tls,
+            retries,
             connectivity,
             timeout,
             ..Self::default()
@@ -202,15 +203,6 @@ impl<'a> BaseClientBuilder<'a> {
         self
     }
 
-    /// Read the retry count from [`EnvVars::UV_HTTP_RETRIES`] if set, otherwise use the default
-    /// retries.
-    ///
-    /// Errors when [`EnvVars::UV_HTTP_RETRIES`] is not a valid u32.
-    pub fn retries_from_env(mut self) -> Result<Self, RetryParsingError> {
-        self.retries = retries_from_env()?;
-        Ok(self)
-    }
-
     #[must_use]
     pub fn native_tls(mut self, native_tls: bool) -> Self {
         self.native_tls = native_tls;
@@ -292,7 +284,7 @@ impl<'a> BaseClientBuilder<'a> {
     }
 
     /// Create a [`RetryPolicy`] for the client.
-    fn retry_policy(&self) -> ExponentialBackoff {
+    pub fn retry_policy(&self) -> ExponentialBackoff {
         let mut builder = ExponentialBackoff::builder();
         if env::var_os(EnvVars::UV_TEST_NO_HTTP_RETRY_DELAY).is_some() {
             builder = builder.retry_bounds(Duration::from_millis(0), Duration::from_millis(0));
@@ -1093,19 +1085,6 @@ pub enum RetryParsingError {
     ParseInt(#[from] ParseIntError),
 }
 
-/// Read the retry count from [`EnvVars::UV_HTTP_RETRIES`] if set, otherwise, make no change.
-///
-/// Errors when [`EnvVars::UV_HTTP_RETRIES`] is not a valid u32.
-pub fn retries_from_env() -> Result<u32, RetryParsingError> {
-    // TODO(zanieb): We should probably parse this in another layer, but there's not a natural
-    // fit for it right now
-    if let Some(value) = env::var_os(EnvVars::UV_HTTP_RETRIES) {
-        Ok(value.to_string_lossy().as_ref().parse::<u32>()?)
-    } else {
-        Ok(DEFAULT_RETRIES)
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;

crates/uv-client/src/lib.rs

@@ -1,7 +1,7 @@
 pub use base_client::{
     AuthIntegration, BaseClient, BaseClientBuilder, DEFAULT_RETRIES, ExtraMiddleware,
     RedirectClientWithMiddleware, RequestBuilder, RetryParsingError, UvRetryableStrategy,
-    is_transient_network_error, retries_from_env,
+    is_transient_network_error,
 };
 pub use cached_client::{CacheControl, CachedClient, CachedClientError, DataWithCachePolicy};
 pub use error::{Error, ErrorKind, WrappedReqwestError};

crates/uv-publish/src/lib.rs

@@ -27,7 +27,7 @@ use uv_auth::{Credentials, PyxTokenStore};
 use uv_cache::{Cache, Refresh};
 use uv_client::{
     BaseClient, MetadataFormat, OwnedArchive, RegistryClientBuilder, RequestBuilder,
-    RetryParsingError, UvRetryableStrategy, retries_from_env,
+    RetryParsingError, UvRetryableStrategy,
 };
 use uv_configuration::{KeyringProviderType, TrustedPublishing};
 use uv_distribution_filename::{DistFilename, SourceDistExtension, SourceDistFilename};
@@ -382,6 +382,7 @@ pub async fn upload(
     filename: &DistFilename,
     registry: &DisplaySafeUrl,
     client: &BaseClient,
+    retry_policy: ExponentialBackoff,
     credentials: &Credentials,
     check_url_client: Option<&CheckUrlClient<'_>>,
     download_concurrency: &Semaphore,
@@ -389,8 +390,6 @@ pub async fn upload(
 ) -> Result<bool, PublishError> {
     let mut n_past_retries = 0;
     let start_time = SystemTime::now();
-    // N.B. We cannot use the client policy here because it is set to zero retries.
-    let retry_policy = ExponentialBackoff::builder().build_with_max_retries(retries_from_env()?);
     loop {
         let (request, idx) = build_upload_request(
             file,

crates/uv-python/src/installation.rs

@@ -5,11 +5,10 @@ use std::str::FromStr;
 
 use indexmap::IndexMap;
 use ref_cast::RefCast;
-use reqwest_retry::policies::ExponentialBackoff;
 use tracing::{debug, info};
 
 use uv_cache::Cache;
-use uv_client::{BaseClientBuilder, retries_from_env};
+use uv_client::BaseClientBuilder;
 use uv_pep440::{Prerelease, Version};
 use uv_platform::{Arch, Libc, Os, Platform};
 use uv_preview::Preview;
@@ -231,8 +230,7 @@ impl PythonInstallation {
 
         // Python downloads are performing their own retries to catch stream errors, disable the
         // default retries to avoid the middleware from performing uncontrolled retries.
-        let retry_policy =
-            ExponentialBackoff::builder().build_with_max_retries(retries_from_env()?);
+        let retry_policy = client_builder.retry_policy();
         let client = client_builder.clone().retries(0).build();
 
         info!("Fetching requested Python...");

crates/uv-settings/Cargo.toml

@@ -17,6 +17,7 @@ workspace = true
 
 [dependencies]
 uv-cache-info = { workspace = true, features = ["schemars"] }
+uv-client = { workspace = true }
 uv-configuration = { workspace = true, features = ["schemars", "clap"] }
 uv-dirs = { workspace = true }
 uv-distribution-types = { workspace = true, features = ["schemars"] }

crates/uv-settings/src/lib.rs

@@ -585,6 +585,7 @@ pub struct EnvironmentOptions {
     pub install_mirrors: PythonInstallMirrors,
     pub log_context: Option<bool>,
     pub http_timeout: Duration,
+    pub http_retries: u32,
     pub upload_http_timeout: Duration,
     pub concurrency: Concurrency,
     #[cfg(feature = "tracing-durations-export")]
@@ -596,9 +597,11 @@ impl EnvironmentOptions {
     pub fn new() -> Result<Self, Error> {
         // Timeout options, matching https://doc.rust-lang.org/nightly/cargo/reference/config.html#httptimeout
         // `UV_REQUEST_TIMEOUT` is provided for backwards compatibility with v0.1.6
-        let http_timeout = parse_u64_environment_variable(EnvVars::UV_HTTP_TIMEOUT)?
-            .or(parse_u64_environment_variable(EnvVars::UV_REQUEST_TIMEOUT)?)
-            .or(parse_u64_environment_variable(EnvVars::HTTP_TIMEOUT)?)
+        let http_timeout = parse_integer_environment_variable(EnvVars::UV_HTTP_TIMEOUT)?
+            .or(parse_integer_environment_variable(
+                EnvVars::UV_REQUEST_TIMEOUT,
+            )?)
+            .or(parse_integer_environment_variable(EnvVars::HTTP_TIMEOUT)?)
             .map(Duration::from_secs);
 
         Ok(Self {
@@ -610,13 +613,9 @@ impl EnvironmentOptions {
                 EnvVars::UV_PYTHON_INSTALL_REGISTRY,
             )?,
             concurrency: Concurrency {
-                downloads: parse_non_zero_usize_environment_variable(
-                    EnvVars::UV_CONCURRENT_DOWNLOADS,
-                )?,
-                builds: parse_non_zero_usize_environment_variable(EnvVars::UV_CONCURRENT_BUILDS)?,
-                installs: parse_non_zero_usize_environment_variable(
-                    EnvVars::UV_CONCURRENT_INSTALLS,
-                )?,
+                downloads: parse_integer_environment_variable(EnvVars::UV_CONCURRENT_DOWNLOADS)?,
+                builds: parse_integer_environment_variable(EnvVars::UV_CONCURRENT_BUILDS)?,
+                installs: parse_integer_environment_variable(EnvVars::UV_CONCURRENT_INSTALLS)?,
             },
             install_mirrors: PythonInstallMirrors {
                 python_install_mirror: parse_string_environment_variable(
@@ -630,11 +629,15 @@ impl EnvironmentOptions {
                 )?,
             },
             log_context: parse_boolish_environment_variable(EnvVars::UV_LOG_CONTEXT)?,
-            upload_http_timeout: parse_u64_environment_variable(EnvVars::UV_UPLOAD_HTTP_TIMEOUT)?
+            upload_http_timeout: parse_integer_environment_variable(
+                EnvVars::UV_UPLOAD_HTTP_TIMEOUT,
+            )?
             .map(Duration::from_secs)
             .or(http_timeout)
             .unwrap_or(Duration::from_secs(15 * 60)),
             http_timeout: http_timeout.unwrap_or(Duration::from_secs(30)),
+            http_retries: parse_integer_environment_variable(EnvVars::UV_HTTP_RETRIES)?
+                .unwrap_or(uv_client::DEFAULT_RETRIES),
             #[cfg(feature = "tracing-durations-export")]
             tracing_durations_file: parse_path_environment_variable(
                 EnvVars::TRACING_DURATIONS_FILE,
@@ -716,10 +719,7 @@ fn parse_string_environment_variable(name: &'static str) -> Result<Option<String
     }
 }
 
-fn parse_integer_environment_variable<T>(
-    name: &'static str,
-    err_msg: &'static str,
-) -> Result<Option<T>, Error>
+fn parse_integer_environment_variable<T>(name: &'static str) -> Result<Option<T>, Error>
 where
     T: std::str::FromStr + Copy,
     <T as std::str::FromStr>::Err: std::fmt::Display,
@@ -732,7 +732,7 @@ where
                 std::env::VarError::NotUnicode(err) => Err(Error::InvalidEnvironmentVariable {
                     name: name.to_string(),
                     value: err.to_string_lossy().to_string(),
-                    err: err_msg.to_string(),
+                    err: "expected a valid UTF-8 string".to_string(),
                 }),
             };
         }
@@ -743,26 +743,14 @@ where
 
     match value.parse::<T>() {
         Ok(v) => Ok(Some(v)),
-        Err(_) => Err(Error::InvalidEnvironmentVariable {
+        Err(err) => Err(Error::InvalidEnvironmentVariable {
             name: name.to_string(),
             value,
-            err: err_msg.to_string(),
+            err: err.to_string(),
         }),
     }
 }
 
-/// Parse a integer environment variable.
-fn parse_u64_environment_variable(name: &'static str) -> Result<Option<u64>, Error> {
-    parse_integer_environment_variable(name, "expected an integer")
-}
-
-/// Parse a non-zero usize environment variable.
-fn parse_non_zero_usize_environment_variable(
-    name: &'static str,
-) -> Result<Option<NonZeroUsize>, Error> {
-    parse_integer_environment_variable(name, "expected a non-zero positive integer")
-}
-
 #[cfg(feature = "tracing-durations-export")]
 /// Parse a path environment variable.
 fn parse_path_environment_variable(name: &'static str) -> Option<PathBuf> {

crates/uv/Cargo.toml

@@ -91,7 +91,6 @@ owo-colors = { workspace = true }
 petgraph = { workspace = true }
 regex = { workspace = true }
 reqwest = { workspace = true }
-reqwest-retry = { workspace = true }
 rkyv = { workspace = true }
 rustc-hash = { workspace = true }
 serde = { workspace = true }

crates/uv/src/commands/auth/login.rs

@@ -44,6 +44,7 @@ pub(crate) async fn login(
             network_settings.allow_insecure_host.clone(),
             preview,
             network_settings.timeout,
+            network_settings.retries,
         )
         .auth_integration(AuthIntegration::NoAuthMiddleware)
         .build();

crates/uv/src/commands/auth/logout.rs

@@ -104,6 +104,7 @@ async fn pyx_logout(
         network_settings.allow_insecure_host.clone(),
         preview,
         network_settings.timeout,
+        network_settings.retries,
     )
     .build();
 

crates/uv/src/commands/auth/token.rs

@@ -33,6 +33,7 @@ pub(crate) async fn token(
             network_settings.allow_insecure_host.clone(),
             preview,
             network_settings.timeout,
+            network_settings.retries,
         )
         .auth_integration(AuthIntegration::NoAuthMiddleware)
         .build();

crates/uv/src/commands/project/format.rs

@@ -2,12 +2,11 @@ use std::path::Path;
 use std::str::FromStr;
 
 use anyhow::{Context, Result};
-use reqwest_retry::policies::ExponentialBackoff;
 use tokio::process::Command;
 
 use uv_bin_install::{Binary, bin_install};
 use uv_cache::Cache;
-use uv_client::{BaseClientBuilder, retries_from_env};
+use uv_client::BaseClientBuilder;
 use uv_pep440::Version;
 use uv_preview::{Preview, PreviewFeatures};
 use uv_warnings::warn_user;
@@ -64,9 +63,9 @@ pub(crate) async fn format(
     // Parse version if provided
     let version = version.as_deref().map(Version::from_str).transpose()?;
 
+    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 retry_policy = ExponentialBackoff::builder().build_with_max_retries(retries_from_env()?);
     let client = client_builder.retries(0).build();
 
     // Get the path to Ruff, downloading it if necessary

crates/uv/src/commands/publish.rs

@@ -129,6 +129,7 @@ pub(crate) async fn publish(
         .auth_integration(AuthIntegration::NoAuthMiddleware)
         .wrap_existing(&upload_client);
 
+    let retry_policy = client_builder.retry_policy();
     // We're only checking a single URL and one at a time, so 1 permit is sufficient
     let download_concurrency = Arc::new(Semaphore::new(1));
 
@@ -222,6 +223,7 @@ pub(crate) async fn publish(
             &filename,
             &publish_url,
             &upload_client,
+            retry_policy,
             &credentials,
             check_url_client.as_ref(),
             &download_concurrency,

crates/uv/src/commands/python/install.rs

@@ -11,11 +11,10 @@ use futures::stream::FuturesUnordered;
 use indexmap::IndexSet;
 use itertools::{Either, Itertools};
 use owo_colors::{AnsiColors, OwoColorize};
-use reqwest_retry::policies::ExponentialBackoff;
 use rustc_hash::{FxHashMap, FxHashSet};
 use tracing::{debug, trace};
 
-use uv_client::{BaseClientBuilder, retries_from_env};
+use uv_client::BaseClientBuilder;
 use uv_fs::Simplified;
 use uv_platform::{Arch, Libc};
 use uv_preview::{Preview, PreviewFeatures};
@@ -398,9 +397,9 @@ pub(crate) async fn install(
         .unique_by(|download| download.key())
         .collect::<Vec<_>>();
 
+    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 retry_policy = ExponentialBackoff::builder().build_with_max_retries(retries_from_env()?);
     let client = client_builder.retries(0).build();
 
     let reporter = PythonDownloadReporter::new(printer, downloads.len() as u64);

crates/uv/src/lib.rs

@@ -183,9 +183,9 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
                 settings.network_settings.native_tls,
                 settings.network_settings.allow_insecure_host,
                 settings.preview,
-                environment.http_timeout,
-            )
-            .retries_from_env()?;
+                settings.network_settings.timeout,
+                settings.network_settings.retries,
+            );
             Some(
                 RunCommand::from_args(command, client_builder, *module, *script, *gui_script)
                     .await?,
@@ -456,9 +456,9 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
         globals.network_settings.native_tls,
         globals.network_settings.allow_insecure_host.clone(),
         globals.preview,
-        environment.http_timeout,
-    )
-    .retries_from_env()?;
+        globals.network_settings.timeout,
+        globals.network_settings.retries,
+    );
 
     match *cli.command {
         Commands::Auth(AuthNamespace {

crates/uv/src/settings.rs

@@ -184,6 +184,7 @@ pub(crate) struct NetworkSettings {
     pub(crate) native_tls: bool,
     pub(crate) allow_insecure_host: Vec<TrustedHost>,
     pub(crate) timeout: Duration,
+    pub(crate) retries: u32,
 }
 
 impl NetworkSettings {
@@ -200,7 +201,6 @@ impl NetworkSettings {
         } else {
             Connectivity::Online
         };
-        let timeout = environment.http_timeout;
         let native_tls = flag(args.native_tls, args.no_native_tls, "native-tls")
             .combine(workspace.and_then(|workspace| workspace.globals.native_tls))
             .unwrap_or(false);
@@ -225,7 +225,8 @@ impl NetworkSettings {
             connectivity,
             native_tls,
             allow_insecure_host,
-            timeout,
+            timeout: environment.http_timeout,
+            retries: environment.http_retries,
         }
     }
 }

crates/uv/tests/it/network.rs

@@ -323,8 +323,21 @@ async fn install_http_retries() {
     ----- stdout -----
 
     ----- stderr -----
-    error: Failed to parse `UV_HTTP_RETRIES`
-      Caused by: invalid digit found in string
+    error: Failed to parse environment variable `UV_HTTP_RETRIES` with invalid value `foo`: invalid digit found in string
+    "
+    );
+
+    uv_snapshot!(context.filters(), context.pip_install()
+        .arg("anyio")
+        .arg("--index")
+        .arg(server.uri())
+        .env(EnvVars::UV_HTTP_RETRIES, "-1"), @r"
+    success: false
+    exit_code: 2
+    ----- stdout -----
+
+    ----- stderr -----
+    error: Failed to parse environment variable `UV_HTTP_RETRIES` with invalid value `-1`: invalid digit found in string
     "
     );
 
@@ -338,8 +351,7 @@ async fn install_http_retries() {
     ----- stdout -----
 
     ----- stderr -----
-    error: Failed to parse `UV_HTTP_RETRIES`
-      Caused by: number too large to fit in target type
+    error: Failed to parse environment variable `UV_HTTP_RETRIES` with invalid value `999999999999`: number too large to fit in target type
     "
     );
 

crates/uv/tests/it/show_settings.rs

@@ -67,6 +67,7 @@ fn resolve_uv_toml() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -267,6 +268,7 @@ fn resolve_uv_toml() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -468,6 +470,7 @@ fn resolve_uv_toml() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -701,6 +704,7 @@ fn resolve_pyproject_toml() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -903,6 +907,7 @@ fn resolve_pyproject_toml() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -1081,6 +1086,7 @@ fn resolve_pyproject_toml() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -1308,6 +1314,7 @@ fn resolve_index_url() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -1543,6 +1550,7 @@ fn resolve_index_url() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -1836,6 +1844,7 @@ fn resolve_find_links() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -2060,6 +2069,7 @@ fn resolve_top_level() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -2243,6 +2253,7 @@ fn resolve_top_level() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -2476,6 +2487,7 @@ fn resolve_top_level() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -2732,6 +2744,7 @@ fn resolve_user_configuration() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -2905,6 +2918,7 @@ fn resolve_user_configuration() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -3078,6 +3092,7 @@ fn resolve_user_configuration() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -3253,6 +3268,7 @@ fn resolve_user_configuration() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -3447,6 +3463,7 @@ fn resolve_tool() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -3633,6 +3650,7 @@ fn resolve_poetry_toml() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -3840,6 +3858,7 @@ fn resolve_both() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -4086,6 +4105,7 @@ fn resolve_both_special_fields() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -4411,6 +4431,7 @@ fn resolve_config_file() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -4711,6 +4732,7 @@ fn resolve_skip_empty() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -4887,6 +4909,7 @@ fn resolve_skip_empty() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -5082,6 +5105,7 @@ fn allow_insecure_host() -> anyhow::Result<()> {
                 },
             ],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -5269,6 +5293,7 @@ fn index_priority() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -5504,6 +5529,7 @@ fn index_priority() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -5745,6 +5771,7 @@ fn index_priority() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -5981,6 +6008,7 @@ fn index_priority() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -6224,6 +6252,7 @@ fn index_priority() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -6460,6 +6489,7 @@ fn index_priority() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -6709,6 +6739,7 @@ fn verify_hashes() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -6875,6 +6906,7 @@ fn verify_hashes() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -7039,6 +7071,7 @@ fn verify_hashes() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -7205,6 +7238,7 @@ fn verify_hashes() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -7369,6 +7403,7 @@ fn verify_hashes() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -7534,6 +7569,7 @@ fn verify_hashes() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -7714,6 +7750,7 @@ fn preview_features() {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -7827,6 +7864,7 @@ fn preview_features() {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -7940,6 +7978,7 @@ fn preview_features() {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -8053,6 +8092,7 @@ fn preview_features() {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -8166,6 +8206,7 @@ fn preview_features() {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -8281,6 +8322,7 @@ fn preview_features() {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -8415,6 +8457,7 @@ fn upgrade_pip_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -8589,6 +8632,7 @@ fn upgrade_pip_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -8786,6 +8830,7 @@ fn upgrade_pip_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -8958,6 +9003,7 @@ fn upgrade_pip_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -9124,6 +9170,7 @@ fn upgrade_pip_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -9291,6 +9338,7 @@ fn upgrade_pip_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -9523,6 +9571,7 @@ fn upgrade_project_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -9641,6 +9690,7 @@ fn upgrade_project_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -9782,6 +9832,7 @@ fn upgrade_project_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -9898,6 +9949,7 @@ fn upgrade_project_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -10004,6 +10056,7 @@ fn upgrade_project_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -10111,6 +10164,7 @@ fn upgrade_project_cli_config_interaction() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -10282,6 +10336,7 @@ fn build_isolation_override() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,
@@ -10451,6 +10506,7 @@ fn build_isolation_override() -> anyhow::Result<()> {
             native_tls: false,
             allow_insecure_host: [],
             timeout: [TIME],
+            retries: 3,
         },
         concurrency: Concurrency {
             downloads: 50,

crates/uv/tests/it/venv.rs

@@ -885,8 +885,6 @@ fn seed_older_python_version() {
 #[test]
 fn create_venv_with_invalid_http_timeout() {
     let context = TestContext::new_with_versions(&["3.12"]).with_http_timeout("not_a_number");
-
-    // Create a virtual environment at `.venv`.
     uv_snapshot!(context.filters(), context.venv()
         .arg(context.venv.as_os_str())
         .arg("--python")
@@ -896,15 +894,13 @@ fn create_venv_with_invalid_http_timeout() {
     ----- stdout -----
 
     ----- stderr -----
-    error: Failed to parse environment variable `UV_HTTP_TIMEOUT` with invalid value `not_a_number`: expected an integer
+    error: Failed to parse environment variable `UV_HTTP_TIMEOUT` with invalid value `not_a_number`: invalid digit found in string
     "###);
 }
 
 #[test]
 fn create_venv_with_invalid_concurrent_installs() {
     let context = TestContext::new_with_versions(&["3.12"]).with_concurrent_installs("0");
-
-    // Create a virtual environment at `.venv`.
     uv_snapshot!(context.filters(), context.venv()
         .arg(context.venv.as_os_str())
         .arg("--python")
@@ -914,7 +910,7 @@ fn create_venv_with_invalid_concurrent_installs() {
     ----- stdout -----
 
     ----- stderr -----
-    error: Failed to parse environment variable `UV_CONCURRENT_INSTALLS` with invalid value `0`: expected a non-zero positive integer
+    error: Failed to parse environment variable `UV_CONCURRENT_INSTALLS` with invalid value `0`: number would be zero for non-zero type
     "###);
 }