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bug for datagrabber #1915

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Merged
merged 3 commits into from
Feb 16, 2018
Merged

bug for datagrabber #1915

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0e3ea76
Datagrabber bug with the flag raise_on_empty
anbai106 Feb 10, 2017
d573790
bug for datagrabber #1783
anbai106 Feb 15, 2018
b8eda2d
ENH: Add drop_blank_outputs input field
effigies Feb 16, 2018
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11 changes: 9 additions & 2 deletions nipype/interfaces/io.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1044,6 +1044,10 @@ class DataGrabberInputSpec(DynamicTraitedSpec, BaseInterfaceInputSpec):
True,
usedefault=True,
desc='Generate exception if list is empty for a given field')
drop_blank_outputs = traits.Bool(
False, usedefault=True,
desc="Remove ``None`` entries from output lists"
)
sort_filelist = traits.Bool(
mandatory=True, desc='Sort the filelist that matches the template')
template = Str(
Expand Down Expand Up @@ -1242,8 +1246,11 @@ def _list_outputs(self):
if self.inputs.sort_filelist:
outfiles = human_order_sorted(outfiles)
outputs[key].append(list_to_filename(outfiles))
if any([val is None for val in outputs[key]]):
outputs[key] = []
if self.inputs.drop_blank_outputs:
outputs[key] = [x for x in outputs[key] if x is not None]
else:
if any([val is None for val in outputs[key]]):
outputs[key] = []
if len(outputs[key]) == 0:
outputs[key] = None
elif len(outputs[key]) == 1:
Expand Down