From e688d56c5fab493296ef51670bcbeb667e0c91d5 Mon Sep 17 00:00:00 2001
From: Chi Wang <wang.chi@microsoft.com>
Date: Fri, 30 Dec 2022 10:21:30 -0800
Subject: [PATCH] create dir for log file name (#867)

---
 flaml/tune/tune.py     | 1 +
 test/tune/test_tune.py | 3 +--
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/flaml/tune/tune.py b/flaml/tune/tune.py
index 07e29d566dd2..755e1039c8f6 100644
--- a/flaml/tune/tune.py
+++ b/flaml/tune/tune.py
@@ -448,6 +448,7 @@ def easy_objective(config):
             logger.addHandler(old_handlers[0])
         if verbose > 0:
             if log_file_name:
+                os.makedirs(os.path.dirname(log_file_name), exist_ok=True)
                 logger.addHandler(logging.FileHandler(log_file_name))
             elif not logger.hasHandlers():
                 # Add the console handler.
diff --git a/test/tune/test_tune.py b/test/tune/test_tune.py
index 8608461b9010..371b664d62e3 100644
--- a/test/tune/test_tune.py
+++ b/test/tune/test_tune.py
@@ -46,8 +46,7 @@ def pca_flaml(config):
         metric="loss",
         mode="min",
         num_samples=5,
-        local_dir="logs",
-        log_file_name="logs/nested.log",
+        log_file_name="logs/create/nested.log",
         verbose=3,
     )
     print(analysis.best_result)