Just a quick heads-up: with the latest IPython & Spyder github versions I'm 
seeing the following error when trying to start an IPython kernel:

>>> Traceback (most recent call last):
  File "C:\dev\code\spyderlib\spyderlib\plugins\externalconsole.py", line 
772, in <lambda>
    cf, kernel_widget_id=id(shellwidget)))
  File "C:\dev\code\spyderlib\spyderlib\plugins\externalconsole.py", line 
825, in create_ipython_client
    self.main.ipyconsole.new_client(connection_file, kernel_widget_id)
  File "C:\dev\code\spyderlib\spyderlib\plugins\ipythonconsole.py", line 
502, in new_client
    self.register_client(cf, kernel_widget_id, client_name)
  File "C:\dev\code\spyderlib\spyderlib\plugins\ipythonconsole.py", line 
553, in register_client
    config=self.client_config())
  File "C:\dev\code\spyderlib\spyderlib\widgets\ipython.py", line 215, in 
create_new_client
    widget = SpyderIPythonWidget(config=config, local_kernel=False)
  File "C:\dev\code\spyderlib\spyderlib\widgets\ipython.py", line 65, in 
__init__
    super(RichIPythonWidget, self).__init__(*args, **kw)
  File "c:\dev\code\ipython\IPython\frontend\qt\console\ipython_widget.py", 
line 116, in __init__
    super(IPythonWidget, self).__init__(*args, **kw)
  File 
"c:\dev\code\ipython\IPython\frontend\qt\console\frontend_widget.py", line 
126, in __init__
    super(FrontendWidget, self).__init__(*args, **kw)
  File 
"c:\dev\code\ipython\IPython\frontend\qt\console\history_console_widget.py", 
line 26, in __init__
    super(HistoryConsoleWidget, self).__init__(*args, **kw)
  File "c:\dev\code\ipython\IPython\frontend\qt\console\console_widget.py", 
line 189, in __init__
    LoggingConfigurable.__init__(self, **kw)
  File "c:\dev\code\ipython\IPython\config\configurable.py", line 84, in 
__init__
    self.config = config
  File "c:\dev\code\ipython\IPython\utils\traitlets.py", line 307, in 
__set__
    obj._notify_trait(self.name, old_value, new_value)
  File "c:\dev\code\ipython\IPython\utils\traitlets.py", line 458, in 
_notify_trait
    c(name, old_value, new_value)
  File "c:\dev\code\ipython\IPython\config\configurable.py", line 139, in 
_config_changed
    setattr(self, k, deepcopy(config_value))
  File "c:\dev\code\ipython\IPython\utils\traitlets.py", line 303, in 
__set__
    new_value = self._validate(obj, value)
  File "c:\dev\code\ipython\IPython\utils\traitlets.py", line 311, in 
_validate
    return self.validate(obj, value)
  File "c:\dev\code\ipython\IPython\utils\traitlets.py", line 1101, in 
validate
    self.error(obj, value)
  File "c:\dev\code\ipython\IPython\utils\traitlets.py", line 334, in error
    raise TraitError(e)
IPython.utils.traitlets.TraitError: The 'gui_completion' trait of a 
SpyderIPythonWidget instance must be any of ['plain', 'droplist', 
'ncurses'] or None, but a value of False <type 'bool'> was specified.

-Dave

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