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Account for fb2 books without covers

lector/settings.py

@@ -17,10 +17,13 @@
 # Keep in mind that all integer / boolean settings are returned as strings
 
 import os
-
+import logging
 from ast import literal_eval
+
 from PyQt5 import QtCore, QtGui
 
+logger = logging.getLogger(__name__)
+
 
 class Settings:
     def __init__(self, parent):