fix extended iterable unpacking in Py3.1

diff --git a/Cython/Compiler/ExprNodes.py b/Cython/Compiler/ExprNodes.py
index abc122d7b6530b30042e8098070157a90c42e8b7..cc019e81bcbe73154c4ae20a656949e0124e98ba 100644 (file)
--- a/Cython/Compiler/ExprNodes.py
+++ b/Cython/Compiler/ExprNodes.py
@@ -3177,7 +3177,7 @@ class SequenceNode(ExprNode):
                         arg.py_result(),
                         target_list, target_list))
                 # resize the list the hard way
-                code.putln("((PyListObject*)%s)->ob_size--;" % target_list)
+                code.putln("((PyVarObject*)%s)->ob_size--;" % target_list)
                 code.put_gotref(arg.py_result())
                 coerced_arg.generate_evaluation_code(code)