From f4166d9817bcdaf8c732c4dd2157664b4f5bbe4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Randy=20D=C3=B6ring?=
 <30527984+radoering@users.noreply.github.com>
Date: Fri, 19 Jun 2026 10:01:49 +0200
Subject: [PATCH] perf: add an early return when there are no optimization
 levels to compile bytecode for

---
 src/installer/destinations.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/installer/destinations.py b/src/installer/destinations.py
index ed5d07a..d948356 100644
--- a/src/installer/destinations.py
+++ b/src/installer/destinations.py
@@ -255,7 +255,10 @@ def write_script(
 
     def _compile_bytecode(self, scheme: Scheme, record: RecordEntry) -> None:
         """Compile bytecode for a single .py file."""
-        if scheme not in ("purelib", "platlib"):
+        if not self.bytecode_optimization_levels or scheme not in (
+            "purelib",
+            "platlib",
+        ):
             return
 
         import compileall