From e4fe661e77d0cb6e89f983a6e98e28916c8184ee Mon Sep 17 00:00:00 2001
From: Felix Stupp <felix.stupp@banananet.work>
Date: Sat, 11 Jun 2022 22:24:24 +0200
Subject: [PATCH] Fixed type hints (NoneType -> None, imported Mapping)

---
 maintain.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/maintain.py b/maintain.py
index f7f5e28..330a5e1 100755
--- a/maintain.py
+++ b/maintain.py
@@ -13,7 +13,7 @@ import shutil
 import subprocess
 import sys
 import tempfile
-from typing import Callable, Iterable, List
+from typing import Callable, Iterable, List, Mapping
 
 warn = partial(print, file=sys.stderr)
 
@@ -396,7 +396,7 @@ def lookup_scans(scans, *id_ranges):
 
 def extract_dates(scans: List[ScanFile]) -> List[str]:
     # used dict instead of set to gurantee input order
-    dates: Mapping[str, NoneType] = dict()
+    dates: Mapping[str, None] = dict()
     for scan in scans:
         if scan.date:
             dates[scan.date] = None