diff --git a/mat2 b/mat2
index 4f4f0db..34c7630 100755
--- a/mat2
+++ b/mat2
@@ -24,7 +24,7 @@ assert Union
 logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.WARNING)
 
 
-def __check_file(filename: str, mode: int=os.R_OK) -> bool:
+def __check_file(filename: str, mode: int = os.R_OK) -> bool:
     if not os.path.exists(filename):
         print("[-] %s is doesn't exist." % filename)
         return False
@@ -72,7 +72,7 @@ def show_meta(filename: str):
     __print_meta(filename, p.get_meta())
 
 
-def __print_meta(filename: str, metadata: dict, depth: int=1):
+def __print_meta(filename: str, metadata: dict, depth: int = 1):
     padding = " " * depth*2
     if not metadata:
         print(padding + "No metadata found")
diff --git a/nautilus/mat2.py b/nautilus/mat2.py
index 562f8a7..d476d55 100644
--- a/nautilus/mat2.py
+++ b/nautilus/mat2.py
@@ -173,7 +173,7 @@ class Mat2Extension(GObject.GObject, Nautilus.MenuProvider, Nautilus.LocationWid
         if fname is None:
             self.infobar_hbox.destroy()
             self.infobar.hide()
-            if len(self.failed_items):
+            if self.failed_items:
                 self.__infobar_failure()
             if not processing_queue.empty():
                 print("Something went wrong, the queue isn't empty :/")