Make module name logic more resilient in _always_use_pickle_for (#9086)

Author: jrbourbeau

distributed/protocol/pickle.py

@@ -29,7 +29,10 @@ def reducer_override(self, obj):
 
 
 def _always_use_pickle_for(x):
-    mod, _, _ = x.__class__.__module__.partition(".")
+    try:
+        mod, _, _ = x.__class__.__module__.partition(".")
+    except Exception:
+        return False
     if mod == "numpy":
         import numpy as np