From e477c28020258ee26ae9c2ea1410c8ec7cfa8d17 Mon Sep 17 00:00:00 2001
From: Andreas Motl <andreas.motl@panodata.org>
Date: Mon, 26 Apr 2021 00:41:52 +0200
Subject: [PATCH] Mitigate concurrency flaw when creating directories

---
 wetterdienst/util/cache.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wetterdienst/util/cache.py b/wetterdienst/util/cache.py
index 25fe2c074..c7935938a 100644
--- a/wetterdienst/util/cache.py
+++ b/wetterdienst/util/cache.py
@@ -35,7 +35,7 @@
     ]
     for cache_directory in cache_directories:
         if not os.path.exists(cache_directory):
-            os.makedirs(cache_directory)
+            os.makedirs(cache_directory, exist_ok=True)
 
 # Configure cache backend.
 # TODO: Make cache backend configurable, e.g. optionally use Redis for running