From 124eb94270420a20ab4b296a60b6cc508d9d950c Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Fri, 26 Oct 1990 13:44:32 +0000
Subject: [PATCH] Fix bug in rect.intersect(): empty rects beyond the first
 were ignored instead of making the outcome empty...

---
 Lib/lib-stdwin/rect.py | 17 +++++++++--------
 Lib/stdwin/rect.py     | 17 +++++++++--------
 2 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/Lib/lib-stdwin/rect.py b/Lib/lib-stdwin/rect.py
index c044b9f0c71..aa5ff4449b7 100644
--- a/Lib/lib-stdwin/rect.py
+++ b/Lib/lib-stdwin/rect.py
@@ -29,14 +29,15 @@ def intersect(list):
 	if is_empty(list[0]): return empty
 	(left, top), (right, bottom) = list[0]
 	for rect in list[1:]:
-		if not is_empty(rect):
-			(l, t), (r, b) = rect
-			if left < l: left = l
-			if top < t: top = t
-			if right > r: right = r
-			if bottom > b: bottom = b
-			if is_empty((left, top), (right, bottom)):
-				return empty
+		if is_empty(rect):
+			return empty
+		(l, t), (r, b) = rect
+		if left < l: left = l
+		if top < t: top = t
+		if right > r: right = r
+		if bottom > b: bottom = b
+		if is_empty((left, top), (right, bottom)):
+			return empty
 	return (left, top), (right, bottom)
 
 
diff --git a/Lib/stdwin/rect.py b/Lib/stdwin/rect.py
index c044b9f0c71..aa5ff4449b7 100755
--- a/Lib/stdwin/rect.py
+++ b/Lib/stdwin/rect.py
@@ -29,14 +29,15 @@ def intersect(list):
 	if is_empty(list[0]): return empty
 	(left, top), (right, bottom) = list[0]
 	for rect in list[1:]:
-		if not is_empty(rect):
-			(l, t), (r, b) = rect
-			if left < l: left = l
-			if top < t: top = t
-			if right > r: right = r
-			if bottom > b: bottom = b
-			if is_empty((left, top), (right, bottom)):
-				return empty
+		if is_empty(rect):
+			return empty
+		(l, t), (r, b) = rect
+		if left < l: left = l
+		if top < t: top = t
+		if right > r: right = r
+		if bottom > b: bottom = b
+		if is_empty((left, top), (right, bottom)):
+			return empty
 	return (left, top), (right, bottom)