AttributeError

[saiprasanna06]

$python main.py --dataset MUTAG

Generating results for MUTAG...
Generating discrete embeddings for MUTAG.
/home/cma/anaconda3/lib/python3.9/site-packages/numpy/lib/npyio.py:528: VisibleDeprecationWarning: Creating an ndarray from ragged nested sequences (which is a list-or-tuple of lists-or-tuples-or ndarrays with different lengths or shapes) is deprecated. If you meant to do this, you must specify 'dtype=object' when creating the ndarray.
arr = np.asanyarray(arr)
Embeddings for MUTAG computed, saved to output/MUTAG/MUTAG_wl_discrete_embeddings_h2.npy.

Computing the Wasserstein distances...
Traceback (most recent call last):
File "/home/cma/Documents/WWL-master/experiments/main.py", line 180, in
main()
File "/home/cma/Documents/WWL-master/experiments/main.py", line 65, in main
wasserstein_distances = compute_wasserstein_distance(label_sequences, h, sinkhorn=sinkhorn,
File "/home/cma/Documents/WWL-master/experiments/wwl.py", line 192, in compute_wasserstein_distance
costs = ot.dist(labels_1, labels_2, metric=ground_distance)
File "/home/cma/anaconda3/lib/python3.9/site-packages/ot/utils.py", line 237, in dist
return cdist(x1, x2, metric=metric, w=w)
File "/home/cma/anaconda3/lib/python3.9/site-packages/scipy/spatial/distance.py", line 2929, in cdist
return cdist_fn(XA, XB, out=out, **kwargs)
File "/home/cma/anaconda3/lib/python3.9/site-packages/scipy/spatial/distance.py", line 1673, in call
XA, XB, typ, kwargs = _validate_cdist_input(
File "/home/cma/anaconda3/lib/python3.9/site-packages/scipy/spatial/distance.py", line 205, in _validate_cdist_input
kwargs = _validate_kwargs((XA, XB), mA + mB, n, **kwargs)
File "/home/cma/anaconda3/lib/python3.9/site-packages/scipy/spatial/distance.py", line 225, in _validate_hamming_kwargs
if w.ndim != 1 or w.shape[0] != n:
AttributeError: 'NoneType' object has no attribute 'ndim'