The code I was running is simple:
from tqdm import tqdm
import torch
from torchvision import datasets, transforms
data = datasets.StanfordCars('./data', split='train', transform=transforms.Compose([transforms.ToTensor(), transforms.Normalize((0.5, 0.5, 0.5), (0.5, 0.5, 0.5))]), download=True)
loader = torch.utils.data.DataLoader(data, 128, shuffle=False, drop_last=True, pin_memory=False)
for i, data in enumerate(tqdm(loader), 0):
None
The error I got while running this is:
0%| | 0/63 [00:01<?, ?it/s]
Traceback (most recent call last):
File "/home/john/research/turbo/test.py", line 7, in <module>
for i, data in enumerate(tqdm(loader), 0):
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/tqdm/std.py", line 1195, in __iter__
for obj in iterable:
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/torch/utils/data/dataloader.py", line 628, in __next__
data = self._next_data()
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/torch/utils/data/dataloader.py", line 671, in _next_data
data = self._dataset_fetcher.fetch(index) # may raise StopIteration
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/torch/utils/data/_utils/fetch.py", line 61, in fetch
return self.collate_fn(data)
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/torch/utils/data/_utils/collate.py", line 265, in default_collate
return collate(batch, collate_fn_map=default_collate_fn_map)
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/torch/utils/data/_utils/collate.py", line 143, in collate
return [collate(samples, collate_fn_map=collate_fn_map) for samples in transposed] # Backwards compatibility.
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/torch/utils/data/_utils/collate.py", line 143, in <listcomp>
return [collate(samples, collate_fn_map=collate_fn_map) for samples in transposed] # Backwards compatibility.
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/torch/utils/data/_utils/collate.py", line 120, in collate
return collate_fn_map[elem_type](batch, collate_fn_map=collate_fn_map)
File "/home/john/miniconda3/envs/torch/lib/python3.10/site-packages/torch/utils/data/_utils/collate.py", line 163, in collate_tensor_fn
return torch.stack(batch, 0, out=out)
RuntimeError: stack expects each tensor to be equal size, but got [3, 400, 600] at entry 0 and [3, 675, 900] at entry 1
Could anyone please help me solve this issue? I have not even used any model, just the loading is giving me an error.