Added the conversion of very large longs as an open issue.

pep-0238.txt

@@ -193,7 +193,7 @@ Alternatives
       multiple interpreters installed.
 
 
-Specification
+API Changes
 
     During the transitional phase, we have to support *three* division
     operators within the same program: classic division (for / in
@@ -355,6 +355,13 @@ Open Issues
       need the same.  These usually have enough control over the
       library packages available in their environment.
 
+    - For very large long integers, the definition of true division as
+      returning a float causes problems, since the range of Python
+      longs is much larger than that of Python floats.  This problem
+      will disappear if and when rational numbers are supported.  In
+      the interim, maybe the long-to-float conversion could be made to
+      raise OverflowError if the long is out of range.
+
 
 FAQ