Minor update.

[agtree2dot.git] / agtree2dot.py

diff --git a/agtree2dot.py b/agtree2dot.py
index 0f787ac..4eef05a 100755 (executable)
--- a/agtree2dot.py
+++ b/agtree2dot.py
@@ -83,7 +83,7 @@ def fill_graph_lists(u, node_labels, node_list, link_list):
                     re.search('<class \'(.*\.|)([a-zA-Z0-9_]*)\'>', str(type(u))).group(2))
         node_list[u] = node
 
-        if isinstance(u, torch.autograd.Variable):
+        if hasattr(u, 'grad_fn'):
             fill_graph_lists(u.grad_fn, node_labels, node_list, link_list)
             add_link(node_list, link_list, u, 0, u.grad_fn, 0)