From 7667f58151d5efbbae4f0b1d7178f99dad0d74c0 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Wed, 9 Sep 2015 01:02:23 +0200
Subject: Issue #23517: fromtimestamp() and utcfromtimestamp() methods of
 datetime.datetime now round microseconds to nearest with ties going to
 nearest even integer (ROUND_HALF_EVEN), as round(float), instead of rounding
 towards -Infinity (ROUND_FLOOR).

pytime API: replace _PyTime_ROUND_HALF_UP with _PyTime_ROUND_HALF_EVEN. Fix
also _PyTime_Divide() for negative numbers.

_PyTime_AsTimeval_impl() now reuses _PyTime_Divide() instead of reimplementing
rounding modes.
---
 Lib/datetime.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Lib/datetime.py')

diff --git a/Lib/datetime.py b/Lib/datetime.py
index 3c25ef84c6..3f29bc4b7a 100644
--- a/Lib/datetime.py
+++ b/Lib/datetime.py
@@ -1380,7 +1380,7 @@ class datetime(date):
         A timezone info object may be passed in as well.
         """
         frac, t = _math.modf(t)
-        us = _round_half_up(frac * 1e6)
+        us = round(frac * 1e6)
         if us >= 1000000:
             t += 1
             us -= 1000000
-- 
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