diff --git a/core/fs.py b/core/fs.py
index d006611f..7d9003bb 100644
--- a/core/fs.py
+++ b/core/fs.py
@@ -13,6 +13,16 @@
 
 import os
 
+from math import floor
+import logging
+import sqlite3
+from threading import Lock
+from typing import Any, AnyStr, Union, Callable
+
+from pathlib import Path
+from hscommon.util import nonone, get_file_ext
+
+hasher: Callable
 try:
     import xxhash
 
@@ -22,15 +32,6 @@ except ImportError:
 
     hasher = hashlib.md5
 
-from math import floor
-import logging
-import sqlite3
-from threading import Lock
-from typing import Any, AnyStr, Union
-
-from pathlib import Path
-from hscommon.util import nonone, get_file_ext
-
 __all__ = [
     "File",
     "Folder",
diff --git a/core/tests/fs_test.py b/core/tests/fs_test.py
index 47fb9b3c..b2e2815c 100644
--- a/core/tests/fs_test.py
+++ b/core/tests/fs_test.py
@@ -6,6 +6,16 @@
 # which should be included with this package. The terms are also available at
 # http://www.gnu.org/licenses/gpl-3.0.html
 
+import typing
+from os import urandom
+
+from pathlib import Path
+from hscommon.testutil import eq_
+from core.tests.directories_test import create_fake_fs
+
+from .. import fs
+
+hasher: typing.Callable
 try:
     import xxhash
 
@@ -15,14 +25,6 @@ except ImportError:
 
     hasher = hashlib.md5
 
-from os import urandom
-
-from pathlib import Path
-from hscommon.testutil import eq_
-from core.tests.directories_test import create_fake_fs
-
-from .. import fs
-
 
 def create_fake_fs_with_random_data(rootpath):
     rootpath = rootpath.joinpath("fs")
diff --git a/qtlib/table.py b/qtlib/table.py
index 399db13e..881e7b4d 100644
--- a/qtlib/table.py
+++ b/qtlib/table.py
@@ -6,6 +6,7 @@
 # which should be included with this package. The terms are also available at
 # http://www.gnu.org/licenses/gpl-3.0.html
 
+import typing
 from PyQt5.QtCore import (
     Qt,
     QAbstractTableModel,
@@ -14,13 +15,13 @@ from PyQt5.QtCore import (
     QItemSelection,
 )
 
-from .column import Columns
+from .column import Columns, Column
 
 
 class Table(QAbstractTableModel):
     # Flags you want when index.isValid() is False. In those cases, _getFlags() is never called.
-    INVALID_INDEX_FLAGS = Qt.ItemIsEnabled
-    COLUMNS = []
+    INVALID_INDEX_FLAGS = Qt.ItemFlag.ItemIsEnabled
+    COLUMNS: typing.List[Column] = []
 
     def __init__(self, model, view, **kwargs):
         super().__init__(**kwargs)