TypeError when trying to connect to a remote repository

[lbeltrame]

This happened out of the blue recently. No updates to attic have been done.

 attic check sshbackup:mybackup.attic
Traceback (most recent call last):
  File "/usr/bin/attic", line 3, in <module>
    main()
  File "/usr/lib64/python3.4/site-packages/attic/archiver.py", line 715, in main
    exit_code = archiver.run(sys.argv[1:])
  File "/usr/lib64/python3.4/site-packages/attic/archiver.py", line 705, in run
    return args.func(args)
  File "/usr/lib64/python3.4/site-packages/attic/archiver.py", line 69, in do_check
    repository = self.open_repository(args.repository, exclusive=args.repair)
  File "/usr/lib64/python3.4/site-packages/attic/archiver.py", line 32, in open_repository
    repository = RemoteRepository(location, create=create)
  File "/usr/lib64/python3.4/site-packages/attic/remote.py", line 118, in __init__
    version = self.call('negotiate', 1)
  File "/usr/lib64/python3.4/site-packages/attic/remote.py", line 127, in call
    for resp in self.call_many(cmd, [args], **kw):
  File "/usr/lib64/python3.4/site-packages/attic/remote.py", line 173, in call_many
    for type, msgid, error, res in self.unpacker:
TypeError: 'int' object is not iterable

In fact the unpacker's next method returns ints...

[lbeltrame]

The reason lines in the fact that my ssh user had ForceCommand set. However I'll keep this report open as this should be handled (if possible) more gracefully than throwing an exception that looks unrelated.

[ThomasWaldmann]

see PR #229.