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Hey guys,

sorry for my late reply. I guess this is indeed caused by trying to introduce partial Python3-compatibility into ROS. The "encode()" and "decode()" parts had to be added because of the new string representation in Python 3 (Unicode strings and bytes for data instead of unicode and 8-bit strings, see http://docs.python.org/release/3.0.1/whatsnew/3.0.html#text-vs-data-instead-of-unicode-vs-8-bit).

However it seems like the _x.encode() uses the current standard string encoding to get from string to bytes which seems to be 'ascii' in your case while on my computer it is 'utf-8'. This could be the cause why Wim could not reproduce the problem. To test this, could you set your default string encoding to utf-8 and check if you still get the error?

You can set your default encoding using:

sys.setdefaultencoding('utf-8')

I am not familiar with the smach viewer, but i would be interested what kind of data you are sending SmachContainerStatus-messages...

If this works, there is the possibility that we force the encoding to be utf-8 in the messages... of course, we would have to set the decode-functions to utf-8 too....

Hope this helps and sorry again for the late reply...

Cheers

Michi