replace useless dict items iteration by predictably ordered key iteration

--HG--
extra : transplant_source : %A0%CB%0B1_H%F3%CC%D7%2A%A39%E591D%D6i%9F%FE

1 files changed, 1 insertions, 1 deletions

diff --git a/Cython/Compiler/ParseTreeTransforms.py b/Cython/Compiler/ParseTreeTransforms.py
index a4403101a..49ba013be 100644
--- a/Cython/Compiler/ParseTreeTransforms.py
+++ b/Cython/Compiler/ParseTreeTransforms.py
@@ -692,7 +692,7 @@ class InterpretCompilerDirectives(CythonTransform, SkipDeclarations):
 
     # Set up processing and handle the cython: comments.
     def visit_ModuleNode(self, node):
-        for key, value in node.directive_comments.items():
+        for key in sorted(node.directive_comments):
             if not self.check_directive_scope(node.pos, key, 'module'):
                 self.wrong_scope_error(node.pos, key, 'module')
                 del node.directive_comments[key]