The wrong variable is checked and appended in this example code block.

mark-up · mark-up · commit 60a206f20f2e · 2012-04-03T00:05:24.000+12:00
diff --git a/docs/writing/style.rst b/docs/writing/style.rst
@@ -219,8 +219,8 @@ operations on lists using a different concise syntax.
     a = [3, 4, 5]
     b = []
     for i in a:
-        if a > 4:
-            b.append(a)
+        if i > 4:
+            b.append(i)
 
 **Good**:
 
