Allow get_microxs_and_flux to use OPENMC_CHAIN_FILE environment varia…

…ble (#2934)
openmc-dev · Apr 5, 2024 · 0aad22d · 0aad22d
1 parent cc848ef
commit 0aad22d
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/openmc/deplete/microxs.py b/openmc/deplete/microxs.py
@@ -27,10 +27,9 @@
 
 
 def _resolve_chain_file_path(chain_file: str):
-    # Determine what reactions and nuclides are available in chain
     if chain_file is None:
         chain_file = openmc.config.get('chain_file')
-        if 'chain_file' in openmc.config:
+        if 'chain_file' not in openmc.config:
             raise DataError(
                 "No depletion chain specified and could not find depletion "
                 "chain in openmc.config['chain_file']"