Update array_api_compat/common/_helpers.py

Author: lucascolley

array_api_compat/common/_helpers.py

@@ -670,7 +670,7 @@ def your_function(x, y):
     # Explanation: Dynamo does not know whether the underlying python object for
     # PythonModuleVariable(<module 'array_api_compat.torch' from ...) is hashable
     names = set(x.__name__ for x in namespaces)
-    namespaces = [ns for ns in namespaces if ns.__name__ in names]
+    namespaces = set(ns for ns in namespaces if ns.__name__ in names)
 
     try:
         (xp,) = tuple(namespaces)