import backports.configparser before configparser, #128

backports.configparser got a major rewrite and an upgrade from 3.3 to
3.5 imports the wrong configparser module on Python 2.6/2.7.

Hopefully, this commit makes it work again. Alternatively, you can
remove the old configparser module(s):

  rm lib/python2.7/site-packages/configparser*

And re-install configparser from PyPi.

isso/core.py

@@ -9,7 +9,11 @@ import threading
 import multiprocessing
 
 from email.utils import parseaddr, formataddr
-from configparser import ConfigParser
+
+try:
+    from backports.configparser import ConfigParser
+except ImportError:
+    from configparser import ConfigParser
 
 try:
     import uwsgi