REF: remove deprecated day_of_year api from PeriodIndex close #1723

Author: wesm

RELEASE.rst

@@ -31,6 +31,11 @@ pandas 0.8.2
 
   - Add ``flags`` option for ``re.compile`` in some Series.str methods (#1659)
 
+**API Changes**
+
+  - Deprecated ``day_of_year`` API removed from PeriodIndex, use ``dayofyear``
+    (#1723)
+
 **Bug fixes**
 
   - Fix MM-YYYY time series indexing case (#1672)

pandas/tseries/period.py

@@ -220,7 +220,7 @@ def to_timestamp(self, freq=None, how='S'):
     week = weekofyear
     dayofweek = _period_field_accessor('dayofweek', 10)
     weekday = dayofweek
-    dayofyear = day_of_year = _period_field_accessor('dayofyear', 9)
+    dayofyear = _period_field_accessor('dayofyear', 9)
     quarter = _period_field_accessor('quarter', 2)
     qyear = _period_field_accessor('qyear', 1)
 

pandas/tseries/tests/test_period.py

@@ -309,7 +309,7 @@ def test_properties_daily(self):
         assert_equal(b_date.month, 1)
         assert_equal(b_date.day, 1)
         assert_equal(b_date.weekday, 0)
-        assert_equal(b_date.day_of_year, 1)
+        assert_equal(b_date.dayofyear, 1)
         #
         d_date = Period(freq='D', year=2007, month=1, day=1)
         #
@@ -318,7 +318,7 @@ def test_properties_daily(self):
         assert_equal(d_date.month, 1)
         assert_equal(d_date.day, 1)
         assert_equal(d_date.weekday, 0)
-        assert_equal(d_date.day_of_year, 1)
+        assert_equal(d_date.dayofyear, 1)
 
 
     def test_properties_hourly(self):
@@ -330,7 +330,7 @@ def test_properties_hourly(self):
         assert_equal(h_date.month, 1)
         assert_equal(h_date.day, 1)
         assert_equal(h_date.weekday, 0)
-        assert_equal(h_date.day_of_year, 1)
+        assert_equal(h_date.dayofyear, 1)
         assert_equal(h_date.hour, 0)
         #
 
@@ -344,7 +344,7 @@ def test_properties_minutely(self):
         assert_equal(t_date.month, 1)
         assert_equal(t_date.day, 1)
         assert_equal(t_date.weekday, 0)
-        assert_equal(t_date.day_of_year, 1)
+        assert_equal(t_date.dayofyear, 1)
         assert_equal(t_date.hour, 0)
         assert_equal(t_date.minute, 0)
 
@@ -359,7 +359,7 @@ def test_properties_secondly(self):
         assert_equal(s_date.month, 1)
         assert_equal(s_date.day, 1)
         assert_equal(s_date.weekday, 0)
-        assert_equal(s_date.day_of_year, 1)
+        assert_equal(s_date.dayofyear, 1)
         assert_equal(s_date.hour, 0)
         assert_equal(s_date.minute, 0)
         assert_equal(s_date.second, 0)