Tratlets issue with pycharm 5

I am getting the following issue when trying to start the python console, or run any scripts on PyCharm 5.

I am using OSX el capitain,  have ipython 3.2.1 installed, the python kernel is 2.7.9. Everything runs fine (incl ipython notebook) outside of pycharm.

let me know?


usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/bin/python2.7 /Applications/ 53527 53528

Traceback (most recent call last):

  File "/Applications/", line 488, in <module>

    pydevconsole.StartServer(pydev_localhost.get_localhost(), int(port), int(client_port))

  File "/Applications/", line 330, in StartServer

    interpreter = InterpreterInterface(host, client_port, threading.currentThread())

  File "/Applications/", line 26, in __init__

    self.interpreter = get_pydev_frontend(host, client_port)

  File "/Applications/", line 472, in get_pydev_frontend

    _PyDevFrontEndContainer._instance = _PyDevFrontEnd()

  File "/Applications/", line 303, in __init__

    self.ipython = PyDevTerminalInteractiveShell.instance()

  File "/usr/local/lib/python2.7/site-packages/IPython/config/", line 337, in instance

    inst = cls(*args, **kwargs)

  File "/usr/local/lib/python2.7/site-packages/IPython/core/", line 512, in __init__


  File "/usr/local/lib/python2.7/site-packages/IPython/core/", line 1911, in init_readline

    if self.readline_use:

  File "/usr/local/lib/python2.7/site-packages/traitlets/", line 529, in __get__

    return self.get(obj, cls)

  File "/usr/local/lib/python2.7/site-packages/traitlets/", line 507, in get

    % (, obj))

traitlets.traitlets.TraitError: No default value found for None trait of <pydev_ipython_console_011.PyDevTerminalInteractiveShell object at 0x105f0b050>

1 comment
Comment actions Permalink

this seems to have 'magically' fixed itself following several restarts and muttering under my breath... 



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