AttributeError: type object 'StateTSP' has no attribute 'initialize'

[no-wings]

I run this code in windows 10,and set the environment as the instruction,but always appear the erro:AttributeError: type object 'StateTSP' has no attribute 'initialize'.can u help me with the issue.

[wouterkool]

Hi,

For me to help me you have to be a bit more precise as to what exactly you did and which command you run to get this output. initialize should exist in StateTSP, see https://github.com/wouterkool/attention-learn-to-route/blob/a6d0623b24b74e4d73f2dc05eb39100835c5bf6e/problems/tsp/state_tsp.py#L43 so maybe you can debug what is the problem from there?

[fysjtu]

I'sorry but I meet the same problem when trying "python run.py --graph_size 20 --baseline rollout --run_name 'tsp20_rollout' ", can u help me?

Traceback (most recent call last): File "run.py", line 172, in run(get_options()) File "run.py", line 104, in run baseline = RolloutBaseline(model, problem, opts) File "/home/jinHM/fanyu/attention-learn-to-route-master/reinforce_baselines.py", line 151, in init self._update_model(model, epoch) File "/home/jinHM/fanyu/attention-learn-to-route-master/reinforce_baselines.py", line 171, in _update_model self.bl_vals = rollout(self.model, self.dataset, self.opts).cpu().numpy() File "/home/jinHM/fanyu/attention-learn-to-route-master/train.py", line 43, in rollout in tqdm(DataLoader(dataset, batch_size=opts.eval_batch_size), disable=opts.no_progress_bar) File "/home/jinHM/fanyu/attention-learn-to-route-master/train.py", line 42, in for bat File "/home/jinHM/fanyu/attention-learn-to-route-master/train.py", line 37, in eval_model_bat cost, _ = model(move_to(bat, opts.device)) File "/home/jinHM/anaconda3/envs/mdvrp/lib/python3.6/site-packages/torch/nn/modules/module.py", line 532, in call result = self.forward(*input, **kwargs) File "/home/jinHM/anaconda3/envs/mdvrp/lib/python3.6/site-packages/torch/nn/parallel/data_parallel.py", line 152, in forward outputs = self.parallel_apply(replicas, inputs, kwargs) File "/home/jinHM/anaconda3/envs/mdvrp/lib/python3.6/site-packages/torch/nn/parallel/data_parallel.py", line 162, in parallel_apply return parallel_apply(replicas, inputs, kwargs, self.device_ids[:len(replicas)]) File "/home/jinHM/anaconda3/envs/mdvrp/lib/python3.6/site-packages/torch/nn/parallel/parallel_apply.py", line 85, in parallel_apply output.reraise() File "/home/jinHM/anaconda3/envs/mdvrp/lib/python3.6/site-packages/torch/_utils.py", line 394, in reraise raise self.exc_type(msg) AttributeError: Caught AttributeError in replica 0 on device 0. Original Traceback (most recent call last): File "/home/jinHM/anaconda3/envs/mdvrp/lib/python3.6/site-packages/torch/nn/parallel/parallel_apply.py", line 60, in _worker output = module(*input, **kwargs) File "/home/jinHM/anaconda3/envs/mdvrp/lib/python3.6/site-packages/torch/nn/modules/module.py", line 532, in call result = self.forward(*input, **kwargs) File "/home/jinHM/fanyu/attention-learn-to-route-master/nets/attention_model.py", line 138, in forward _log_p, pi = self._inner(input, embeddings) File "/home/jinHM/fanyu/attention-learn-to-route-master/nets/attention_model.py", line 230, in _inner state = self.problem.make_state(input) File "/home/jinHM/fanyu/attention-learn-to-route-master/problems/tsp/problem_tsp.py", line 33, in make_state return StateTSP.initialize(*args, **kwargs) AttributeError: type object 'StateTSP' has no attribute 'initialize'

[wouterkool]

Judging from your output, maybe it has something to do with running on multiple GPUs. Can you try on a single GPU? E.g. run 'CUDA_VISIBLE_DEVICES=0 python run.py ...'. Otherwise, maybe you can help debug why this error comes up, as the class StateTSP has the method initialize (see my earlier response)? Thanks!

[ddingwang12]

I'sorry but I meet the same problem when trying "python run.py --graph_size 100 --load_path pretrained/tsp_100/epoch-99.pt" in ubuntu 18.04, can u help me? Traceback (most recent call last): File "run.py", line 172, in run(get_options()) File "run.py", line 167, in run opts File "/home/ls/PycharmProjects/attention-learn-to-route-master/train.py", line 95, in train_epoch opts File "/home/ls/PycharmProjects/attention-learn-to-route-master/train.py", line 143, in train_batch cost, log_likelihood = model(x) File "/home/ls/anaconda3/envs/ls/lib/python3.6/site-packages/torch/nn/modules/module.py", line 532, in call result = self.forward(*input, **kwargs) File "/home/ls/PycharmProjects/attention-learn-to-route-master/nets/attention_model.py", line 138, in forward _log_p, pi = self._inner(input, embeddings) File "/home/ls/PycharmProjects/attention-learn-to-route-master/nets/attention_model.py", line 230, in _inner state = self.problem.make_state(input) File "/home/ls/PycharmProjects/attention-learn-to-route-master/problems/tsp/problem_tsp.py", line 33, in make_state return StateTSP.initialize(*args, **kwargs) AttributeError: type object 'StateTSP' has no attribute 'initialize'

[wouterkool]

Hi! I'm sorry to hear it's causing you trouble. Which version of Python are you using? See my earlier response, initialize should be a static method of StateTSP, see https://github.com/wouterkool/attention-learn-to-route/blob/a6d0623b24b74e4d73f2dc05eb39100835c5bf6e/problems/tsp/state_tsp.py#L43, so maybe you can help me and debug why it is missing?