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ENH: More verbose description when a faulty results file is loaded #2920

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Apr 19, 2019
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ENH: More verbose description when a faulty results file is loaded #2920

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25 changes: 14 additions & 11 deletions nipype/pipeline/engine/nodes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -514,32 +514,35 @@ def _get_inputs(self):
logger.debug('input: %s', key)
results_file = info[0]
logger.debug('results file: %s', results_file)
results = loadpkl(results_file)
outputs = loadpkl(results_file).outputs
if outputs is None:
raise RuntimeError("""\
Error populating the input "%s" of node "%s": the results file of the source node \
(%s) does not contain any outputs.""" % (key, self.name, results_file))
output_value = Undefined
if isinstance(info[1], tuple):
output_name = info[1][0]
value = getattr(results.outputs, output_name)
value = getattr(outputs, output_name)
if isdefined(value):
output_value = evaluate_connect_function(
info[1][1], info[1][2], value)
else:
output_name = info[1]
try:
output_value = results.outputs.trait_get()[output_name]
output_value = outputs.trait_get()[output_name]
except AttributeError:
output_value = results.outputs.dictcopy()[output_name]
output_value = outputs.dictcopy()[output_name]
logger.debug('output: %s', output_name)
try:
self.set_input(key, deepcopy(output_value))
except traits.TraitError as e:
msg = [
'Error setting node input:',
'Node: %s' % self.name,
'input: %s' % key,
msg = (
e.args[0], '', 'Error setting node input:',
'Node: %s' % self.name, 'input: %s' % key,
'results_file: %s' % results_file,
'value: %s' % str(output_value)
]
e.args = (e.args[0] + "\n" + '\n'.join(msg), )
'value: %s' % str(output_value),
)
e.args = ('\n'.join(msg), )
raise

# Successfully set inputs
Expand Down