Update old PEP URL.

pep-0279.txt

@@ -179,13 +179,13 @@ Specification for a new built-in:
 References
 
     [1] PEP 255 Simple Generators
-        http://python.sourceforge.net/peps/pep-0255.html
+        http://www.python.org/dev/peps/pep-0255/
 
     [2] PEP 212 Loop Counter Iteration
-        http://python.sourceforge.net/peps/pep-0212.html
+        http://www.python.org/dev/peps/pep-0212/
 
     [3] PEP 234 Iterators
-        http://python.sourceforge.net/peps/pep-0234.html
+        http://www.python.org/dev/peps/pep-0234/
 
 
 Copyright

pep-0289.txt

@@ -288,10 +288,10 @@ References
 ==========
 
 .. [1] PEP 202 List Comprehensions
-       http://python.sourceforge.net/peps/pep-0202.html
+       http://www.python.org/dev/peps/pep-0202/
 
 .. [2] PEP 255 Simple Generators
-       http://python.sourceforge.net/peps/pep-0255.html
+       http://www.python.org/dev/peps/pep-0255/
 
 .. [3] Peter Norvig's Accumulation Display Proposal
        http://www.norvig.com/pyacc.html

pep-0319.txt

@@ -477,13 +477,13 @@ References
         http://docs.python.org/reference/
 
     [2] PEP 236, Back to the __future__, Peters
-        http://python.sourceforge.net/peps/pep-0236.html
+        http://www.python.org/dev/peps/pep-0236/
 
     [3] PEP 230, Warning Framework, van Rossum
-        http://python.sourceforge.net/peps/pep-0236.html
+        http://www.python.org/dev/peps/pep-0230/
 
     [4] PEP 310, Reliable Acquisition/Release Pairs, Hudson, Moore
-        http://www.python.org/peps/pep-0310.html
+        http://www.python.org/dev/peps/pep-0310/
 
 
 Copyright