From f7ac6875c3436c6ccaffe210b52fc7d68119e303 Mon Sep 17 00:00:00 2001
From: konsti <konstin@mailbox.org>
Date: Wed, 23 Jul 2025 18:52:39 +0200
Subject: [PATCH] Improve concurrency safety of Python downloads into cache
 (#14846)

---
 crates/uv-python/src/downloads.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/crates/uv-python/src/downloads.rs b/crates/uv-python/src/downloads.rs
index ad516d096..05bf17cd1 100644
--- a/crates/uv-python/src/downloads.rs
+++ b/crates/uv-python/src/downloads.rs
@@ -988,7 +988,11 @@ impl ManagedPythonDownload {
             archive_writer.flush().await?;
         }
         // Move the completed file into place, invalidating the `File` instance.
-        fs_err::rename(&temp_file, target_cache_file)?;
+        match rename_with_retry(&temp_file, target_cache_file).await {
+            Ok(()) => {}
+            Err(_) if target_cache_file.is_file() => {}
+            Err(err) => return Err(err.into()),
+        }
         Ok(())
     }