debugged setting of input value

Author: tclose

pydra/engine/specs.py

@@ -459,15 +459,12 @@ def collect_additional_outputs(self, inputs, output_dir, outputs):
             ]:
                 raise Exception("not implemented (collect_additional_output)")
             # assuming that field should have either default or metadata, but not both
-            try:
-                additional_out[fld.name] = getattr(inputs, fld.name)
-            except AttributeError:
-                pass
-            else:
+            input_value = getattr(inputs, fld.name, attr.NOTHING)
+            if input_value is not attr.NOTHING:
                 if fld.type in (File, MultiOutputFile, Directory, Path):
-                    additional_out[fld.name] = Path(additional_out[fld.name]).absolute()
-                continue
-            if (
+                    input_value = Path(input_value).absolute()
+                additional_out[fld.name] = input_value
+            elif (
                 fld.default is None or fld.default == attr.NOTHING
             ) and not fld.metadata:  # TODO: is it right?
                 raise AttributeError("File has to have default value or metadata")