The b2a_base64() input size limit no longer exists.

IDLEfork implements the recompile, according to this mail:
  http://mail.python.org/pipermail/idle-dev/2002-December/001417.html

pep-0042.txt

@@ -227,15 +227,11 @@ Standard Library
       http://www.python.org/sf/415692
 
     - Jim Fulton pointed out that binascii's b2a_base64() function
-      restricts the length of its input to 57 characters for no good
-      reason: the code would work for any input size but for this
-      check. Also, there are situations where it makes sense not to
-      append a newline, or to append something else than a newline.
+      has situations where it makes sense not to append a newline,
+      or to append something else than a newline.
 
       Proposal:
 
-        - get rid of the input size check
-
         - add an optional argument giving the delimiter string to be
           appended, defaulting to "\n"
 
@@ -277,12 +273,6 @@ C API wishes
 
 Tools
 
-    - IDLE should reload & recompile modules changed externally.  To
-      be done properly, scripts will have to be run in a separate
-      process.
-
-      http://www.python.org/sf/210841
-
     - Python could use a GUI builder.
 
       http://www.python.org/sf/210820