attribute error

Author: hauntsaninja

mypy/metastore.py

@@ -173,8 +173,8 @@ def __init__(self, cache_dir_prefix: str, sync_off: bool = False) -> None:
         # We check startswith instead of equality because the version
         # will have already been appended by the time the cache dir is
         # passed here.
+        self.db = None
         if cache_dir_prefix.startswith(os.devnull):
-            self.db = None
             return
 
         os.makedirs(cache_dir_prefix, exist_ok=True)