fix broken test due to wrong f-string

FSIBT · Oct 26, 2024 · 9ae762c · 9ae762c
1 parent c74d6f2
commit 9ae762c
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/pymcnp/files/inp/datum.py b/src/pymcnp/files/inp/datum.py
@@ -6117,7 +6117,10 @@ def to_mcnp(self) -> str:
 
         if self.comment and isinstance(self.comment, tuple):
             if len(self.comment) == len(self.substances):
-                return f"m{self.suffix.to_mcnp()} {'\n   '.join(f'{substance.to_mcnp()} $ {comment}' for substance, comment in zip(self.substances, self.comment))}"
+                return f'm{self.suffix.to_mcnp()} ' + '\n   '.join(
+                    f'{substance.to_mcnp()} $ {comment}'
+                    for substance, comment in zip(self.substances, self.comment)
+                )
             else:
                 return super().to_mcnp() + ''.join(f' $ {comment}' for comment in self.comments)
         else: