BUG: Series(Series) discards name attribute #1578

Author: changhiskhan

pandas/core/series.py

@@ -304,6 +304,8 @@ def __new__(cls, data=None, index=None, dtype=None, name=None,
         if isinstance(data, Series):
             if index is None:
                 index = data.index
+            if name is None:
+                name = data.name
         elif isinstance(data, dict):
             if index is None:
                 index = Index(sorted(data))

pandas/tests/test_series.py

@@ -237,6 +237,11 @@ def test_constructor(self):
         self.assertRaises(Exception, Series, np.random.randn(3, 3),
                           index=np.arange(3))
 
+        mixed.name = 'Series'
+        rs = Series(mixed).name
+        xp = 'Series'
+        self.assertEqual(rs, xp)
+
     def test_constructor_empty(self):
         empty = Series()
         empty2 = Series([])
@@ -2975,4 +2980,3 @@ def test_repeat(self):
 if __name__ == '__main__':
     nose.runmodule(argv=[__file__,'-vvs','-x','--pdb', '--pdb-failure'],
                    exit=False)
-