Fairly substantial rewrite.

parsers/cbr.py

@@ -1,5 +1,24 @@
 #!/usr/bin/env python3
 
+# This file is a part of Lector, a Qt based ebook reader
+# Copyright (C) 2017 BasioMeusPuga
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# TODO
+# Account for files with passwords
+
 import os
 import time
 import collections
@@ -49,7 +68,10 @@ class ParseCBR:
                     return cover_image
 
     def get_isbn(self):
-        return None
+        return
+
+    def get_tags(self):
+        return
 
     def get_contents(self):
         file_settings = {