PEP 0431 withdrawal.

pep-0431.txt

@@ -4,7 +4,7 @@ Version: $Revision$
 Last-Modified: $Date$
 Author: Lennart Regebro <regebro@gmail.com>
 BDFL-Delegate: Barry Warsaw <barry@python.org>
-Status: Deferred
+Status: Withdrawn
 Type: Standards Track
 Content-Type: text/x-rst
 Created: 11-Dec-2012
@@ -19,17 +19,17 @@ Python standard library, and also improvements to the time zone API to deal
 with ambiguous time specifications during DST changes.
 
 
-Postponement
+Withdrawal
-============
+==========
 
-The implementation has turned out to be exceedingly complex, due to having to
+After lengthy discussion it has turned out that the things I thought was 
-convert back and forth between the local time and UTC during arithmetic
+problem in datetime's implementation are intentional. Those include
-and adjusting the DST for each arithmetic step, with ambiguous times being
+completely ignoring DST transistions when making date time arithmetic.
-particularly hard to get right.
+That makes the is_dst flags part of this PEP pointless, as they would
+have no useful function. ``datetime`` by design does not separate between
+ambiguous datetimes and will never do so.
 
-This is likely to become much easier if the UTC timestamp is stored internally
+I therefore withdraw this PEP.
-and used for all arithmetic, and an investigation into changing the
-``datetime()`` object to use UTC internally should be done.
 
 
 Proposal