Prevent ImapTransport from raising exception when no messages are available. Fixes #24. Release 3.4.1.

django_mailbox/transports/imap.py

@@ -36,7 +36,13 @@ class ImapTransport(EmailTransport):
     def _get_all_message_ids(self):
         # Fetch all the message uids
         response, message_ids = self.server.uid('search', None, 'ALL')
-        return message_ids[0].split(' ')
+        message_id_string = message_ids[0].strip()
+        # Usually `message_id_string` will be a list of space-separated
+        # ids; we must make sure that it isn't an empty string before
+        # splitting into individual UIDs.
+        if message_id_string:
+            return message_id_string.split(' ')
+        return []
 
     def _get_small_message_ids(self, message_ids):
         # Using existing message uids, get the sizes and

setup.py

@@ -11,7 +11,7 @@ gmail_oauth2_require = [
 
 setup(
     name='django-mailbox',
-    version='3.4',
+    version='3.4.1',
     url='http://github.com/coddingtonbear/django-mailbox/',
     description=(
         'Import mail from POP3, IMAP, local mailboxes or directly from '