Migration fails with "AttributeError: 'str' object has no attribute 'decode'"

[Catfriend1]

Hi,

I've found a bug.

Error:
[19/Jan/2021:16:34:26] HTTP
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/cherrypy/_cprequest.py", line 670, in respond
    response.body = self.handler()
  File "/usr/lib/python3/dist-packages/cherrypy/lib/encoding.py", line 220, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/cherrypy/_cpdispatch.py", line 60, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "/usr/lib/python3/dist-packages/wok/control/base.py", line 161, in wrapper
    action_result = action_fn(*model_args)
  File "/usr/lib/python3/dist-packages/wok/plugins/kimchi/model/vms.py", line 2100, in migrate
    name = name.decode('utf-8')
AttributeError: 'str' object has no attribute 'decode'

Reproducer:

• Open kimchi web UI
• Select any VM
• Choose "Migrate" from the actions drop-down menu
• Fill in target host IP and click OK

Root cause:

• https://github.com/kimchi-project/kimchi/blob/36ed74be5d2016848ea6e453d7fb990d3d7fe3cd/model/vms.py#L2100
• Those two "decode" lines error on python3.

I could work around by commenting the two "decode" lines out.

Specs:

• debian 10.7 amd64
• wok 3.0 (release)
• kimchi 3.0 (release)