81039a1e36
On Python 2, decoding all arguments leads to the possibility that users that use the wrong command or mistype the name will see error output with a unicode string's representation instead of one without it. To avoid this we try and find the first non-option string in the argument list and replace it with an string that is not text only on Python 2. If we encoded the string at all times, then users installing glanceclient on Python 3 would see b'invalid-subcommand' instead. That's as bad as seeing u'invalid-subcommand' on Python 2. Closes-bug: 1533090 Change-Id: I018769e159a607ebb233902cbeb13b95ca417190