only conditionally import mimetools

Author: cmeerw

roundup/mailgw.py

@@ -95,7 +95,7 @@ class node. Any parts of other types are each stored in separate files
 from __future__ import print_function
 __docformat__ = 'restructuredtext'
 
-import re, os, mimetools, smtplib, socket, binascii, quopri
+import re, os, smtplib, socket, binascii, quopri
 import time, random, sys, logging
 import codecs
 import traceback
@@ -115,6 +115,13 @@ class node. Any parts of other types are each stored in separate files
 except ImportError:
     pyme = None
 
+try:
+    import mimetools
+except ImportError:
+    class mimetools:
+        class Message:
+            pass
+
 SENDMAILDEBUG = os.environ.get('SENDMAILDEBUG', '')
 
 class MailGWError(ValueError):