trait error: the path does not exist

[ilkayisik]

I am working on a computer with limited permissions and I was having the same issue as mentioned in this pull request (#229) but with the suggestion of exporting the path this error is eliminated.
However, I still have a trait error:
TraitError: The trait 'converted_files' of a Dcm2niixOutputSpec instance is an existing file name, but the path  '/private/var/folders/yz/g_3xm0ms2f583j1d7bd6bz8xvxx8gp/T/tmpsPPOra/convert/func.nii.gz' does not exist.
I guess I am getting this error because heudiconv is trying to create a folder in a location where I don't have permission to write.
I added this line to convert.py convertnode.base_dir = "/Users/ilkay.isik/heudiconv/tmp" showing another path for this folder and then everything worked fine.
Is this okay or can it create some future problems with compatibility/maintenance?

[mgxd]

@ilkayisik what version of nipype was this run with?

[ilkayisik]

Version: 1.0.4, Build: py27_0, Channel:conda-forge

[oesteban]

If I'm not wrong, I'd say we dealt with some permissions problems with Mac when the real path of folders was under /private/. Can't remember the solution though.

[djarecka]

I don't think this is a permission issue, rather the OSX mess with temporary files.

So I've just created PR that fixes all heudiconv tests on my OSX.

[ilkayisik]

I tried the change offered in the PR and it worked on my OSX too.

[djarecka]

@ilkayisik - thank you for testing it!

[mgxd]

this has now been merged into nipype's master branch, updating to latest nipype, e.g.

pip install -U https://github.com/nipy/nipype/archive/master.zip

should fix this issue