Traceback (most recent call last):


 "nipype-undefined-output.py", line 9, in <module>

print(cort_thick.run())


 "/home/yoh/deb/gits/pkg-exppsy/nipype/nipype/interfaces/base/core.py", line 524, in run

outputs = self.aggregate_outputs(runtime)


 "/home/yoh/deb/gits/pkg-exppsy/nipype/nipype/interfaces/base/core.py", line 602, in aggregate_outputs

predicted_outputs = self._list_outputs()


 "/home/yoh/deb/gits/pkg-exppsy/nipype/nipype/interfaces/ants/segmentation.py", line 254, in _list_outputs

(name, self.inputs.output_image, ext)))
TypeError: sequence item 1: expected string or Unicode, _Undefined found

Traceback (most recent call last):

 "example.py", line 91, in <module>
demonstrate()

 "example.py", line 33, in demonstrate
api = ask_for_credentials()

 "example.py", line 24, in ask_for_credentials
logged_in = api.login(email, password)TypeError: login() takes exactly 4 arguments (3 given)