fix exit

image_classifier/image_classifier.py

@@ -59,7 +59,7 @@ class image_classifier:
         self._init_log()
         if not os.access(directory, os.R_OK):
             self._log.error(f"Unable to access directory '{directory}'")
-            exit 1
+            exit(1)
         self.faces_directory = faces_directory
         self.directory = directory
         self.known_people = self.load_known_people()