Mypy type correctness (#3199)

2 files changed, 3 insertions, 7 deletions

diff --git a/lib/utils/cache.py b/lib/utils/cache.py
index 18f993e9..cca6296a 100644
--- a/lib/utils/cache.py
+++ b/lib/utils/cache.py
@@ -8,16 +8,12 @@ import os
 import pickle
 import sqlite3
 
-import diskcache
+import diskcache  # type: ignore[import-untyped]
 
 from lib.utils.settings import global_settings
 
 from .paths import get_user_dir
-
-try:
-    from functools import lru_cache
-except ImportError:
-    from backports.functools_lru_cache import lru_cache
+from functools import lru_cache
 
 
 # simplify use of lru_cache decorator
diff --git a/lib/utils/param.py b/lib/utils/param.py
index 162dcddc..6def49f7 100644
--- a/lib/utils/param.py
+++ b/lib/utils/param.py
@@ -1,5 +1,5 @@
 class ParamOption:
-    def __init__(self, param_id=None, name=None, preview_image=None):
+    def __init__(self, param_id=None, name=None, preview_image=None) -> None:
         self.id: str = param_id
         self.name: str = name
         self.preview_image: str = preview_image