Merge branch 'fix_1653_bug' of https://github.com/terrapower/armi int…

…o fix_1653_bug
terrapower · Jun 27, 2024 · 39f5aa9 · 39f5aa9
2 parents 2581b51 + 6a70739
commit 39f5aa9
Showing 1 changed file with 6 additions and 9 deletions.
diff --git a/armi/physics/neutronics/crossSectionGroupManager.py b/armi/physics/neutronics/crossSectionGroupManager.py
@@ -1235,15 +1235,12 @@ def createRepresentativeBlocksUsingExistingBlocks(
 
             # create a new block collection that inherits all of the properties
             # and settings from oldBlockCollection.
-            if oldBlockCollection._validRepresentativeBlockTypes is not None:
-                if len(oldBlockCollection._validRepresentativeBlockTypes) > 0:
-                    validBlockTypes = []
-                    for flag in oldBlockCollection._validRepresentativeBlockTypes:
-                        validBlockTypes.append(flags._toString(Flags, flag))
-                else:
-                    validBlockTypes = None
-            else:
-                validBlockTypes = None
+            validBlockTypes = oldBlockCollection._validRepresentativeBlockTypes
+            if validBlockTypes is not None and len(validBlockTypes) > 0:
+                validBlockTypes = [
+                    flags._toString(Flags, flag)
+                    for flag in oldBlockCollection._validRepresentativeBlockTypes
+                ]
             newBlockCollection = oldBlockCollection.__class__(
                 oldBlockCollection.allNuclidesInProblem,
                 validBlockTypes=validBlockTypes,