comment

diff --git a/Cython/Compiler/Optimize.py b/Cython/Compiler/Optimize.py
index 2d21584b6f21f66e2f5357fed34390964021d196..71fd53f3429ef26c2d1ce6240a06e8be76057a94 100644 (file)
--- a/Cython/Compiler/Optimize.py
+++ b/Cython/Compiler/Optimize.py
@@ -38,6 +38,7 @@ class IterationTransform(Visitor.VisitorTransform):
     """Transform some common for-in loop patterns into efficient C loops:
 
     - for-in-dict loop becomes a while loop calling PyDict_Next()
+    - for-in-enumerate is replaced by an external counter variable
     - for-in-range loop becomes a plain C for loop
     """
     PyDict_Next_func_type = PyrexTypes.CFuncType(