Wait only if the promise is not pending

syrusakbary · Mar 5, 2017 · f98004e · f98004e
1 parent 1f103fd
commit f98004e
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/promise/promise.py b/promise/promise.py
@@ -411,6 +411,11 @@ def _event(self):
         return self._event_instance
 
     def _wait(self, timeout=None):
+        if not self.is_pending:
+            # We return if the promise is already
+            # fulfilled or rejected
+            return
+
         target = self._target()
         if target._trace:
             # If we wait, we drain the queue of the