build3.py error

Thanks for a new build3.py for python3. I just tried it and have a new error for reporting:

python3 build3.py -d flo --marshmallow --rootfs full
Flasher: 
Resolution: 
Traceback (most recent call last):
  File "build3.py", line 731, in <module>
    main()
  File "build3.py", line 660, in main
    allapps(args.forcedown)
  File "build3.py", line 180, in allapps
    for key, value in dl_apps.iteritems():
AttributeError: 'dict' object has no attribute 'iteritems'