Apr 4, 2013 · Apr 4, 2013
diff --git a/docs/writing/gotchas.rst b/docs/writing/gotchas.rst

 Five functions are created, but all of them just multiply ``x`` by 4.

 Python's closures are *late binding*. This means that names within closures are
 looked up at the time the inner function is *called*.
 Python's closures are *late binding*.
 This means that the values of variables used in closures are looked
 up at the time the inner function is called.

 Here, whenever *any* of the returned functions are called, the value of ``i``
 is looked up in the surrounding scope at call time, when bythen the loop has
 is looked up in the surrounding scope at call time. Bythen, the loop has
 completed and ``i`` is left with its final value of 4.

 What's particularly nasty about this gotcha is the seemingly prevalent
Original file line number	Diff line number	Diff line change
Expand Up		@@ -128,11 +128,12 @@ What Does Happen

		Five functions are created, but all of them just multiply ``x`` by 4.

		Python's closures are late binding. This means that names within closures are
		looked up at the time the inner function is called.
		Python's closures are late binding.
		This means that the values of variables used in closures are looked
		up at the time the inner function is called.

		Here, whenever any of the returned functions are called, the value of ``i``
		is looked up in the surrounding scope at call time, when bythen the loop has
		is looked up in the surrounding scope at call time. Bythen, the loop has
		completed and ``i`` is left with its final value of 4.

		What's particularly nasty about this gotcha is the seemingly prevalent
Expand Down