Description: update python scripts for python3
Author: tony mancill <tmancill@debian.org>

--- a/primes/matho-sum
+++ b/primes/matho-sum
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 
 # Python program to sum many large integers separated by spaces or newlines.
 # The integers to sum may be entered on the command-line or into standard input.
@@ -12,13 +12,13 @@
 	# read stdin if no command line args
 	while True:
 		try:
-			input_line = raw_input()
+			input_line = input()
 		except:
 			break;
-		for s in string.split(input_line):
+		for s in input_line.split():
 			sum += int(s)
 else:
 	# sum together the command-line args
 	for arg in args:
 		sum += int(arg)
-print sum
+print(sum)
--- a/primes/matho-mult
+++ b/primes/matho-mult
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 
 # Python program to multiply many large integers separated by spaces or newlines.
 # The integers to multiply may be entered on the command-line or into standard input.
@@ -15,13 +15,13 @@
 	# read stdin if no command line args
 	while True:
 		try:
-			input_line = raw_input()
+			input_line = input()
 		except:
 			break;
-		for s in string.split(input_line):
+		for s in input_line.split():
 			prod *= int(s)
 else:
 	# multiply together the command-line args
 	for arg in args:
 		prod *= int(arg)
-print prod
+print(prod)
--- a/primes/primorial
+++ b/primes/primorial
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 
 # This is a Python program to display large primorials.
 # A primorial is the product of all primes up to the given number.
@@ -16,11 +16,11 @@
 import sys
 
 def usage(ev):
-	print "This program calculates large primorials."
-	print
-	print "Usage: %s integers" % os.path.basename(sys.argv[0])
-	print
-	print "A primorial is the product of all primes up to the given number."
+	print("This program calculates large primorials.")
+	print()
+	print("Usage: %s integers" % os.path.basename(sys.argv[0]))
+	print()
+	print("A primorial is the product of all primes up to the given number.")
 	sys.exit(ev)
 
 def output_primorial(arg):
@@ -36,9 +36,9 @@
 	for arg in args:
 		try:
 			if (int(arg) < 1):
-				print >>sys.stderr, "Number too small."
+				print("Number too small.", file=sys.stderr)
 				sys.exit(1)
 		except:
-			print >>sys.stderr, "Positive integer required."
+			print("Positive integer required.", file=sys.stderr)
 			usage(1)
 		output_primorial(arg)
--- a/examples/factorial
+++ b/examples/factorial
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 
 # This is a Python program to display large factorials and test "fact.py".
 
@@ -8,13 +8,13 @@
 import string
 
 def usage():
-	print "This program calculates large factorials."
-	print "Requires and tests \"fact.py\"."
-	print
-	print "Usage: %s integer_expressions" % os.path.basename(sys.argv[0])
-	print
-	print "The integer expressions should be separated by spaces."
-	print "A factorial is the product of all positive integers <= a given integer."
+	print("This program calculates large factorials.")
+	print("Requires and tests \"fact.py\".")
+	print()
+	print("Usage: %s integer_expressions" % os.path.basename(sys.argv[0]))
+	print()
+	print("The integer expressions should be separated by spaces.")
+	print("A factorial is the product of all positive integers <= a given integer.")
 	sys.exit(2)
 
 args = sys.argv[1:]
@@ -23,8 +23,8 @@
 else:
 	try:
 		num = eval(string.join(args))
-		print "factorial(", num, ") =", factorial(num)
+		print("factorial(", num, ") =", factorial(num))
 	except:
 		for arg in args:
 			num = eval(arg)
-			print "factorial(", num, ") =", factorial(num)
+			print("factorial(", num, ") =", factorial(num))
--- a/examples/fact.py
+++ b/examples/fact.py
@@ -7,7 +7,7 @@
 def factorial(x):
 	"Return x! (x factorial)."
 	if (x < 0 or (x % 1.0) != 0.0):
-		raise ValueError, "Factorial argument must be a positive integer."
+		raise ValueError("Factorial argument must be a positive integer.")
 	if (x == 0):
 		return x + 1
 	d = x
@@ -15,6 +15,6 @@
 		x -= 1
 		temp = d * x
 		if (temp <= d):
-			raise ValueError, "Factorial result too large."
+			raise ValueError("Factorial result too large.")
 		d = temp
 	return d