replace frozenset([]) by frozenset()

cd76e995 · Stefan Behnel · d609632a · cd76e995
Commit cd76e995 authored Feb 14, 2014 by Stefan Behnel
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Cython/Compiler/Optimize.py Cython/Compiler/Optimize.py +3 -1

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--- a/Cython/Compiler/Optimize.py
+++ b/Cython/Compiler/Optimize.py
@@ -1603,7 +1603,9 @@ class EarlyReplaceBuiltinCalls(Visitor.EnvTransform):
        """
        if len(pos_args) != 1:
            return node
-        if isinstance(pos_args[0], ExprNodes.ListNode):
+        if pos_args[0].is_sequence_constructor and not pos_args[0].args:
+            del pos_args[0]
+        elif isinstance(pos_args[0], ExprNodes.ListNode):
            pos_args[0] = pos_args[0].as_tuple()
        return node