fix minor bug

BioSTEAMDevelopmentGroup · Jan 15, 2024 · 418f447 · 418f447
1 parent aaa35b3
commit 418f447
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/thermosteam/indexer.py b/thermosteam/indexer.py
@@ -71,10 +71,10 @@ def index_overlap(left_chemicals, right_chemicals, right_index):
     cache = left_chemicals._index_cache
     if CASs in cache:
         left_index, kind = cache[CASs]
-        if kind:
-            raise RuntimeError('conflict in chemical groups and aliases between property packages')
-        else:
+        if kind == 0 or kind == 3:
             return left_index, right_index
+        else:
+            raise RuntimeError('conflict in chemical groups and aliases between property packages')
     else:
         dct = left_chemicals._index
         N = len(CASs)