Update runner.py

carbonfact · Oct 7, 2024 · f38d821 · f38d821
1 parent 4139784
commit f38d821
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/lea/runner.py b/lea/runner.py
@@ -62,12 +62,15 @@ def status(self):
 
     @property
     def error(self) -> BaseException | None:
-        return self.future.exception()
+        if self.future.done() and self.future.exception():
+            return self.future.exception()
+        return None
 
     @property
     def cost(self) -> float | None:
         if result := self.future.result():
             return result.cost
+        return None
 
 
 class Runner: