catch replace list with scalar case

Author: minggli

pandas/core/internals/blocks.py

@@ -777,12 +777,11 @@ def copy(self, deep=True, mgr=None):
 
     def replace(self, to_replace, value, inplace=False, filter=None,
                 regex=False, convert=True, mgr=None):
-        """ replace the to_replace value with value, possible to create new
+        """
+        replace the to_replace value with value, possible to create new
         blocks here this is just a call to putmask. regex is not used here.
-        It is used in ObjectBlocks.  It is here for API
-        compatibility.
+        It is used in ObjectBlocks.  It is here for API compatibility.
         """
-
         inplace = validate_bool_kwarg(inplace, 'inplace')
         original_to_replace = to_replace
 
@@ -2459,6 +2458,9 @@ def replace(self, to_replace, value, inplace=False, filter=None,
                 blocks = result_blocks
             return result_blocks
 
+        elif to_rep_is_list and not value_is_list:
+            to_replace = np.array(to_replace)[np.newaxis, :]
+
         return self._replace_single(to_replace, value, inplace=inplace,
                                     filter=filter, convert=convert,
                                     regex=regex, mgr=mgr)