Add DataFetcher.

gklearn/tests/test_graph_kernels.py

@@ -56,7 +56,7 @@ def test_list_graph_kernels():
 	"""
 	"""
 	from gklearn.kernels import GRAPH_KERNELS, list_of_graph_kernels
-	assert list_of_graph_kernels() != [i for i in GRAPH_KERNELS]
+	assert list_of_graph_kernels() == [i for i in GRAPH_KERNELS]
 	
 
 
@@ -448,4 +448,4 @@ if __name__ == "__main__":
 #	test_RandomWalk('Acyclic', 'sylvester', None, 'imap_unordered')
 #	test_RandomWalk('Acyclic', 'conjugate', None, 'imap_unordered')
 #	test_RandomWalk('Acyclic', 'fp', None, None)
-#	test_RandomWalk('Acyclic', 'spectral', 'exp', 'imap_unordered')
+#	test_RandomWalk('Acyclic', 'spectral', 'exp', 'imap_unordered')