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Created Jun 24, 2015

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epinux@Debian-70-wheezy-64-minimal:~$ ipython3
Traceback (most recent call last):
File "/home/epilib/Envs/env1/lib/python3.4/site-packages/IPython/utils/", line 407, in __get__
value = obj._trait_values[]
AttributeError: 'List' object has no attribute 'name'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/epilib/Envs/env1/bin/ipython3", line 5, in <module>
File "/home/epilib/Envs/env1/lib/python3.4/site-packages/IPython/", line 118, in start_ipython
return launch_new_instance(argv=argv, **kwargs)
File "/home/epinux/dev/ipython/src/traitlets/traitlets/config/", line 590, in launch_instance
app = cls.instance(**kwargs)
File "/home/epinux/dev/ipython/src/traitlets/traitlets/config/", line 380, in instance
inst = cls(*args, **kwargs)
File "<string>", line 2, in __init__
File "/home/epinux/dev/ipython/src/traitlets/traitlets/config/", line 75, in catch_config_error
return method(app, *args, **kwargs)
File "/home/epilib/Envs/env1/lib/python3.4/site-packages/IPython/core/", line 185, in __init__
super(BaseIPythonApplication, self).__init__(**kwargs)
File "/home/epinux/dev/ipython/src/traitlets/traitlets/config/", line 245, in __init__
if self.__class__ not in self.classes:
File "/home/epilib/Envs/env1/lib/python3.4/site-packages/IPython/utils/", line 424, in __get__
raise TraitError('Unexpected error in TraitType: '
IPython.utils.traitlets.TraitError: Unexpected error in TraitType: default value not set properly
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