Whitespace normalization.  Ran reindent.py over the entire source tree.
diff --git a/Demo/scripts/primes.py b/Demo/scripts/primes.py
index 477c57b..00eb05f 100755
--- a/Demo/scripts/primes.py
+++ b/Demo/scripts/primes.py
@@ -3,24 +3,24 @@
 # Print prime numbers in a given range
 
 def main():
-	import sys
-	min, max = 2, 0x7fffffff
-	if sys.argv[1:]:
-		min = int(eval(sys.argv[1]))
-		if sys.argv[2:]:
-			max = int(eval(sys.argv[2]))
-	primes(min, max)
+    import sys
+    min, max = 2, 0x7fffffff
+    if sys.argv[1:]:
+        min = int(eval(sys.argv[1]))
+        if sys.argv[2:]:
+            max = int(eval(sys.argv[2]))
+    primes(min, max)
 
 def primes(min, max):
-	if 2 >= min: print 2
-	primes = [2]
-	i = 3
-	while i <= max:
-		for p in primes:
-			if i%p == 0 or p*p > i: break
-		if i%p <> 0:
-			primes.append(i)
-			if i >= min: print i
-		i = i+2
+    if 2 >= min: print 2
+    primes = [2]
+    i = 3
+    while i <= max:
+        for p in primes:
+            if i%p == 0 or p*p > i: break
+        if i%p <> 0:
+            primes.append(i)
+            if i >= min: print i
+        i = i+2
 
 main()