Nipype1Task with inputs of type list

[omar-rifai]

When working with an interface which requires a list as input (e.g the image_files input for spm.Dartel()), Nipype1Task will pass individual items of the list to the input instead of the entire list which causes the code to crash.

A workaround is to provide a list of list as input but I was wondering if this could be handled directly in the Nipye1Task _run_task code. The issue arises on l.72:

node.inputs.trait_set(**inputs)