From 6007e775e44b08d1cb78a3f62af8ea7132bbe2ce Mon Sep 17 00:00:00 2001
From: TPTBusiness <tpt.requests@pm.me>
Date: Sat, 4 Apr 2026 11:26:39 +0200
Subject: [PATCH] fix: Add missing os import in factor_runner.py

- Fix NameError: name 'os' is not defined
- This caused all 23 parallel runs to fail
- _ensure_results_dirs() uses os functions but import was missing

Tests should still pass
---
 rdagent/scenarios/qlib/developer/factor_runner.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rdagent/scenarios/qlib/developer/factor_runner.py b/rdagent/scenarios/qlib/developer/factor_runner.py
index e6cc04d6..7ff8e525 100644
--- a/rdagent/scenarios/qlib/developer/factor_runner.py
+++ b/rdagent/scenarios/qlib/developer/factor_runner.py
@@ -1,3 +1,4 @@
+import os
 from pathlib import Path
 """
 Qlib Factor Runner - Executes factor backtests in Docker.