BUG: icol() should propegate fill_value for sparse data frames #2249

Author: y-p

pandas/core/frame.py

@@ -1740,8 +1740,15 @@ def icol(self, i):
                     return self.ix[:, i]
 
             values = self._data.iget(i)
-            return self._col_klass.from_array(values, index=self.index,
-                                              name=label)
+            if hasattr(self,'default_fill_value'):
+                s = self._col_klass.from_array(values, index=self.index,
+                                               name=label,
+                                               fill_value= self.default_fill_value)
+            else:
+                s = self._col_klass.from_array(values, index=self.index,
+                                               name=label)
+
+            return s
 
     def _ixs(self, i, axis=0):
         if axis == 0:

pandas/sparse/series.py

@@ -147,11 +147,11 @@ def __new__(cls, data, index=None, sparse_index=None, kind='block',
         return output
 
     @classmethod
-    def from_array(cls, arr, index=None, name=None, copy=False):
+    def from_array(cls, arr, index=None, name=None, copy=False,fill_value=None):
         """
         Simplified alternate constructor
         """
-        return SparseSeries(arr, index=index, name=name, copy=copy)
+        return SparseSeries(arr, index=index, name=name, copy=copy,fill_value=fill_value)
 
     def __init__(self, data, index=None, sparse_index=None, kind='block',
                  fill_value=None, name=None, copy=False):