diff --git a/Python/compile.c b/Python/compile.c
index d5c42ce3e3490b..bf7e95e1cd73a3 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -5315,9 +5315,12 @@ compiler_call_helper(struct compiler *c, location loc,
 }
 
 
-/* List and set comprehensions and generator expressions work by creating a
-  nested function to perform the actual iteration. This means that the
-  iteration variables don't leak into the current scope.
+/* List and set comprehensions work by being inlined at the location where
+  they are defined. The isolation of iteration variables is provided by
+  pushing/popping clashing locals on the stack. Generator expressions work
+  by creating a nested function to perform the actual iteration.
+  This means that the iteration variables don't leak into the current scope.
+  See https://peps.python.org/pep-0709/ for additional information.
   The defined function is called immediately following its definition, with the
   result of that call being the result of the expression.
   The LC/SC version returns the populated container, while the GE version is