Add __abs__ to relativedelta

2 files changed, 32 insertions, 0 deletions

diff --git a/dateutil/relativedelta.py b/dateutil/relativedelta.py
index 64405bb..067b5a5 100644
--- a/dateutil/relativedelta.py
+++ b/dateutil/relativedelta.py
@@ -422,6 +422,24 @@ class relativedelta(object):
                                           is not None else
                                           other.microsecond))
 
+    def __abs__(self):
+        return self.__class__(years=abs(self.years),
+                              months=abs(self.months),
+                              days=abs(self.days),
+                              hours=abs(self.hours),
+                              minutes=abs(self.minutes),
+                              seconds=abs(self.seconds),
+                              microseconds=abs(self.microseconds),
+                              leapdays=self.leapdays,
+                              year=self.year,
+                              month=self.month,
+                              day=self.day,
+                              weekday=self.weekday,
+                              hour=self.hour,
+                              minute=self.minute,
+                              second=self.second,
+                              microsecond=self.microsecond)
+
     def __neg__(self):
         return self.__class__(years=-self.years,
                              months=-self.months,
diff --git a/dateutil/test/test_relativedelta.py b/dateutil/test/test_relativedelta.py
index ed048bf..9891357 100644
--- a/dateutil/test/test_relativedelta.py
+++ b/dateutil/test/test_relativedelta.py
@@ -245,6 +245,20 @@ class RelativeDeltaTest(WarningTestMixin, unittest.TestCase):
         self.assertFalse(relativedelta(days=0))
         self.assertTrue(relativedelta(days=1))
 
+    def testAbsoluteValueNegative(self):
+        rd_base = relativedelta(years=-1, months=-5, days=-2, hours=-3,
+                                minutes=-5, seconds=-2, microseconds=-12)
+        rd_expected = relativedelta(years=1, months=5, days=2, hours=3,
+                                    minutes=5, seconds=2, microseconds=12)
+        self.assertEqual(abs(rd_base), rd_expected)
+
+    def testAbsoluteValuePositive(self):
+        rd_base = relativedelta(years=1, months=5, days=2, hours=3,
+                                minutes=5, seconds=2, microseconds=12)
+        rd_expected = rd_base
+
+        self.assertEqual(abs(rd_base), rd_expected)
+
     def testComparison(self):
         d1 = relativedelta(years=1, months=1, days=1, leapdays=0, hours=1,
                            minutes=1, seconds=1, microseconds=1)