RF: All SpatialImages are makeable

Author: effigies

nibabel/spatialimages.py

@@ -336,18 +336,13 @@ def __init__(self, img):
             self.img = img
 
         def __getitem__(self, slicer):
-            klass = self.img.__class__
-            if not klass.makeable:
-                raise NotImplementedError(
-                    "Cannot slice un-makeable image types")
-
             try:
                 slicer = self.img._check_slicing(self._arr_to_slice(slicer))
             except ValueError as err:
                 raise IndexError(*err.args)
             dataobj = self.img.dataobj[slicer]
             affine = self.img._slice_affine(slicer)
-            return klass(dataobj.copy(), affine, self.img.header)
+            return self.img.__class__(dataobj.copy(), affine, self.img.header)
 
         def _arr_to_slice(self, slicer):
             ''' Convert single item sequence indices to slices '''

nibabel/tests/test_spatialimages.py

@@ -426,9 +426,7 @@ def test_slicer(self):
                 t_axis = 3 if img._spatial_dims.start == 0 else 0
 
             assert_true(hasattr(img.slicer, '__getitem__'))
-            if not img_klass.makeable:
-                assert_raises(NotImplementedError, img.slicer[:])
-                continue
+
             # Note spatial zooms are always first 3, even when
             spatial_zooms = img.header.get_zooms()[:3]