just import print_function

ox/api.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # vi:si:et:sw=4:sts=4:ts=4
 # GPL 2011
+from __future__ import print_function
 from types import MethodType
 import gzip
 import os
@@ -183,10 +184,7 @@ class API(object):
                     print("\ninterrupted by user.")
                     sys.exit(1)
                 except:
-                    try:
                     print("uploading chunk failed, will try again in 5 seconds\r", end='')
-                    except:
-                        print("uploading chunk failed, will try again in 5 seconds\r")
                     sys.stdout.flush()
                     data = {'result': -1}
                     time.sleep(5)