From 36b2eeb297eef81a11894a21a4d4e85f7fc2d822 Mon Sep 17 00:00:00 2001
From: Koen van Zuijlen <koen@shoppingminds.com>
Date: Wed, 30 Dec 2020 17:12:32 +0100
Subject: [PATCH] Code improvement

---
 src/pylast/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pylast/__init__.py b/src/pylast/__init__.py
index d510129..fd7b3e7 100644
--- a/src/pylast/__init__.py
+++ b/src/pylast/__init__.py
@@ -785,7 +785,7 @@ class _ShelfCacheBackend:
     """Used as a backend for caching cacheable requests."""
 
     def __init__(self, file_path=None, flag=None):
-        if flag:
+        if flag is not None:
             self.shelf = shelve.open(file_path, flag=flag)
         else:
             self.shelf = shelve.open(file_path)