diff --git a/dragonion_server/utils/core/const.py b/dragonion_server/utils/core/const.py
deleted file mode 100644
index 5b5c40a..0000000
--- a/dragonion_server/utils/core/const.py
+++ /dev/null
@@ -1,4 +0,0 @@
-import sys
-
-
-portable = getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS')
diff --git a/dragonion_server/utils/core/dirs.py b/dragonion_server/utils/core/dirs.py
index 6538aec..a0f03a7 100644
--- a/dragonion_server/utils/core/dirs.py
+++ b/dragonion_server/utils/core/dirs.py
@@ -1,9 +1,6 @@
 import os
-import sys
 import platform
 
-from . import const
-
 
 def dir_size(start_path):
     total_size = 0
diff --git a/dragonion_server/utils/onion/onion.py b/dragonion_server/utils/onion/onion.py
index 34dec6d..0b5b0c7 100644
--- a/dragonion_server/utils/onion/onion.py
+++ b/dragonion_server/utils/onion/onion.py
@@ -51,6 +51,7 @@ class Onion(object):
         self.tor_data_directory = None
         self.tor_path = dirs.get_tor_paths()
         self.tor_proc = None
+        # noinspection PyTypeChecker
         self.c: Controller = None
         self.connected_to_tor = False
         self.auth_string = None