* Fix bug in tzparse.py for DST timezone
* Added whatis command to pdb.py
* new module GET.py (GL definitions from <gl/get.h>)
* rect.py: is_empty takes a rect as argument, not two points.
* Added tests for builtin round() [XXX not yet complete!]
diff --git a/Lib/lib-stdwin/rect.py b/Lib/lib-stdwin/rect.py
index aa5ff44..9bc6342 100644
--- a/Lib/lib-stdwin/rect.py
+++ b/Lib/lib-stdwin/rect.py
@@ -17,7 +17,8 @@
 
 # Check if a rectangle is empty.
 #
-def is_empty((left, top), (right, bottom)):
+def is_empty(r):
+	(left, top), (right, bottom) = r
 	return left >= right or top >= bottom
 
 
@@ -36,7 +37,7 @@
 		if top < t: top = t
 		if right > r: right = r
 		if bottom > b: bottom = b
-		if is_empty((left, top), (right, bottom)):
+		if is_empty(((left, top), (right, bottom))):
 			return empty
 	return (left, top), (right, bottom)
 
@@ -47,7 +48,7 @@
 def union(list):
 	(left, top), (right, bottom) = empty
 	for (l, t), (r, b) in list[1:]:
-		if not is_empty((l, t), (r, b)):
+		if not is_empty(((l, t), (r, b))):
 			if l < left: left = l
 			if t < top: top = t
 			if r > right: right = r