From ae06205da0da5b694062d04882459a926ee74c8f Mon Sep 17 00:00:00 2001
From: Zanie Blue <contact@zanie.dev>
Date: Wed, 21 Aug 2024 12:35:35 -0500
Subject: [PATCH] Respect `.python-version` files in `uv run` outside projects

---
 crates/uv/src/commands/project/run.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/crates/uv/src/commands/project/run.rs b/crates/uv/src/commands/project/run.rs
index 1f2a77bb03ee..68188ce0cd45 100644
--- a/crates/uv/src/commands/project/run.rs
+++ b/crates/uv/src/commands/project/run.rs
@@ -441,8 +441,18 @@ pub(crate) async fn run(
                     .connectivity(connectivity)
                     .native_tls(native_tls);
 
+                // (1) Explicit request from user
+                let python_request = if let Some(request) = python.as_deref() {
+                    Some(PythonRequest::parse(request))
+                // (2) Request from `.python-version`
+                } else if let Some(request) = request_from_version_file(&CWD).await? {
+                    Some(request)
+                } else {
+                    None
+                };
+
                 let python = PythonInstallation::find_or_download(
-                    python.as_deref().map(PythonRequest::parse),
+                    python_request,
                     // No opt-in is required for system environments, since we are not mutating it.
                     EnvironmentPreference::Any,
                     python_preference,