NZBGet: Don't use priority when set to normal.

couchpotato/core/downloaders/nzbget/__init__.py

@@ -37,7 +37,8 @@ config = [{
                     'name': 'priority',
                     'default': '0',
                     'type': 'dropdown',
-                    'values': [('Very Low', -100), ('Low', -50), ('Normal', 0), ('High', 50), ('Very High', 100)]
+                    'values': [('Very Low', -100), ('Low', -50), ('Normal', 0), ('High', 50), ('Very High', 100)],
+                    'description': 'Only change this if you are using NZBget 9.0 or higher',
                 },
                 {
                     'name': 'manual',

couchpotato/core/downloaders/nzbget/main.py

 from base64 import standard_b64encode
 from couchpotato.core.downloaders.base import Downloader
+from couchpotato.core.helpers.variable import tryInt
 from couchpotato.core.logger import CPLog
-from inspect import isfunction
 import socket
 import traceback
 import xmlrpclib
@@ -44,7 +44,13 @@ class NZBGet(Downloader):
                 log.error('Protocol Error: %s', e)
             return False
 
-        if rpc.append(nzb_name, self.conf('category'), int(self.conf('priority')), False, standard_b64encode(filedata.strip())):
+        priority = tryInt(self.conf('priority'))
+        if priority != 0:
+            xml_response = rpc.append(nzb_name, self.conf('category'), False, standard_b64encode(filedata.strip()))
+        else:
+            xml_response = rpc.append(nzb_name, self.conf('category'), priority, False, standard_b64encode(filedata.strip()))
+
+        if xml_response:
             log.info('NZB sent successfully to NZBGet')
             return True
         else: