combine KeyError & IndexError to common base class LookupError

gallery_dl/text.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2015-2021 Mike Fährmann
+# Copyright 2015-2022 Mike Fährmann
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
@@ -168,7 +168,7 @@ def parse_bytes(value, default=0, suffixes="bkmgtp"):
     """Convert a bytes-amount ("500k", "2.5M", ...) to int"""
     try:
         last = value[-1].lower()
-    except (TypeError, KeyError, IndexError):
+    except (TypeError, LookupError):
         return default
 
     if last in suffixes: