STY: Apply ruff rule RUF017

RUF017 Avoid quadratic list summation

Author: DimitriPapadopoulos

nipype/info.py

@@ -5,6 +5,8 @@
 
 # nipype version information
 # Remove .dev0 for release
+import functools
+import operator
 __version__ = "1.8.7.dev0"
 
 
@@ -187,7 +189,7 @@ def get_nipype_gitversion():
 
 
 def _list_union(iterable):
-    return list(set(sum(iterable, [])))
+    return list(set(functools.reduce(operator.iadd, iterable, [])))
 
 
 # Enable a handle to install all extra dependencies at once

nipype/interfaces/fsl/utils.py

@@ -27,6 +27,8 @@
     isdefined,
 )
 from .base import FSLCommand, FSLCommandInputSpec, Info
+import functools
+import operator
 
 
 class CopyGeomInputSpec(FSLCommandInputSpec):
@@ -482,7 +484,7 @@ class ExtractROI(FSLCommand):
 
     def _format_arg(self, name, spec, value):
         if name == "crop_list":
-            return " ".join(map(str, sum(list(map(list, value)), [])))
+            return " ".join(map(str, functools.reduce(operator.iadd, list(map(list, value)), [])))
         return super()._format_arg(name, spec, value)
 
     def _list_outputs(self):