On Python 3, the data returned from the API is a byte array, not a

Unicode string. As such, it has to be decoded before it can be passed to

the print() function. Otherwise, the print() function will print the

representation of the byte array. See the bug for details.

Ran rbt patch --print under Python 2.7 and 3.6.
Ran rbt patch without --print under Python 2.7 and 3.6.
Ran unit tests under Python 2.7 and 3.6.