BUG: Override SparseBlock.make_block with fill_value argument

Author: Licht-T

pandas/core/internals.py

@@ -2735,6 +2735,20 @@ def copy(self, deep=True, mgr=None):
                                           kind=self.kind, copy=deep,
                                           placement=self.mgr_locs)
 
+    def make_block(self, values, placement=None,
+                   ndim=None, fill_value=None, **kwargs):
+        """
+        Create a new block, with type inference propagate any values that are
+        not specified
+        """
+        if fill_value is not None and isinstance(values, SparseArray):
+            values = SparseArray(values.to_dense(), fill_value=fill_value,
+                                 kind=values.kind, dtype=values.dtype)
+
+        return super(SparseBlock, self).make_block(values, placement=placement,
+                                                   ndim=ndim, fill_value=None,
+                                                   **kwargs)
+
     def make_block_same_class(self, values, placement, sparse_index=None,
                               kind=None, dtype=None, fill_value=None,
                               copy=False, fastpath=True, **kwargs):
@@ -2833,7 +2847,7 @@ def sparse_reindex(self, new_index):
 
 
 def make_block(values, placement, klass=None, ndim=None, dtype=None,
-               fastpath=False):
+               fastpath=False, **kwargs):
     if klass is None:
         dtype = dtype or values.dtype
         vtype = dtype.type