1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/concurrent/futures/_base.py b/Lib/concurrent/futures/_base.py
index 8f155f0..6001e3b 100644
--- a/Lib/concurrent/futures/_base.py
+++ b/Lib/concurrent/futures/_base.py
@@ -404,7 +404,10 @@ class Future(object):
             if self._state not in [CANCELLED, CANCELLED_AND_NOTIFIED, FINISHED]:
                 self._done_callbacks.append(fn)
                 return
-        fn(self)
+        try:
+            fn(self)
+        except Exception:
+            LOGGER.exception('exception calling callback for %r', self)
 
     def result(self, timeout=None):
         """Return the result of the call that the future represents.