py 2.7 fix

torch_scatter/utils/gen.py

@@ -6,14 +6,14 @@ def gen(src, index, dim=-1, out=None, dim_size=None, fill_value=0):
 
     # Automatically expand index tensor to the right dimensions.
     if index.dim() == 1:
-        index_size = [*repeat(1, src.dim())]
+        index_size = list(repeat(1, src.dim()))
         index_size[dim] = src.size(dim)
         index = index.view(index_size).expand_as(src)
 
     # Generate output tensor if not given.
     if out is None:
         dim_size = index.max() + 1 if dim_size is None else dim_size
-        out_size = [*src.size()]
+        out_size = list(src.size())
         out_size[dim] = dim_size
         out = src.new_full(out_size, fill_value)