Noissue - Replace flake8-putty with flake8-per-file-ignores, update to flake8 3 (sitescripts)

sitescripts/web.py

 # This file is part of the Adblock Plus web scripts,
 # Copyright (C) 2006-present eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus 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
@@ skipping 109 matching lines @@
         try:
             handler = handlers[path]
         except KeyError:
             handler = handlers[re.sub(r'[^/]+$', '', path)]
     except KeyError:
         start_response('404 Not Found', [('Content-Type', 'text/plain')])
         return ['Not Found']
 
     return handler(environ, start_response)
 
+
 for module in set(get_config().options('multiplexer')) - set(get_config().defaults()):
     module_path = get_config().get('multiplexer', module)
     if module_path:
         imp.load_source(module, module_path)
     else:
         importlib.import_module(module)