PIL IndexError: index out of range

在pytorch读取自己制作的数据集时，发送return c if c.class is int else c[0] 862 IndexError: index out of range错误。

error报错信息

Traceback (most recent call last):845   File "src/train.py", line 721, in <module>846     main()847   File "src/train.py", line 683, in main848     writer,args.freeze_bn[task_idx])849   File "src/train.py", line 338, in train_model850     for batch_idx, sample in enumerate(train_loader):851   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 623, in __next__852     return self._process_next_batch(batch)853   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 658, in _process_next_batch854     raise batch.exc_type(batch.exc_msg)855 SyntaxError: Traceback (most recent call last):856   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/PIL/ImageFile.py", line 102, in __init__857     self._open()858   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/PIL/JpegImagePlugin.py", line 325, in _open859     i = i8(s)860   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/PIL/_binary.py", line 24, in i8861     return c if c.__class__ is int else c[0]862 IndexError: index out of rangeTraceback (most recent call last):867   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 138, in _worker_loop868     samples = collate_fn([dataset[i] for i in batch_indices])869   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 138, in <listcomp>870     samples = collate_fn([dataset[i] for i in batch_indices])871   File "/home/zp/disk1T/TSNet-LW/src/Read_data.py", line 174, in __getitem__872     image = imageio.imread(img_dir[idx])873   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/imageio/core/functions.py", line 221, in imread874     reader = read(uri, format, "i", **kwargs)875   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/imageio/core/functions.py", line 143, in get_reader876     return format.get_reader(request)877   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/imageio/core/format.py", line 174, in get_reader878     return self.Reader(self, request)879   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/imageio/core/format.py", line 224, in __init__880     self._open(**self.request.kwargs.copy())881   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/imageio/plugins/pillow.py", line 406, in _open882     return PillowFormat.Reader._open(self, pilmode=pilmode, as_gray=as_gray)883   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/imageio/plugins/pillow.py", line 122, in _open884     self._im = factory(self._fp, "")885   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/PIL/JpegImagePlugin.py", line 779, in jpeg_factory886     im = JpegImageFile(fp, filename)887   File "/home/zp/miniconda3/envs/pytorch/lib/python3.6/site-packages/PIL/ImageFile.py", line 111, in __init__888     raise SyntaxError(v)889   File "<string>", line None890 SyntaxError: index out of range

最终定位到错误原因时因为图片本身损坏，导致read的时候无法正常读取。

解决方法

from PIL import Image
import imageio
count = 1
with open('./casiasurf/train+++/rgb_train+++.txt', 'r') as f:s = f.read().splitlines()
for i in range(len(s)):if i > 43875:print(s[i])imageio.imread(s[i])

我用的方法比较简单粗暴，直接遍历所有图片，把报错的图片名称打印出来，定位到哪一张图片损坏，手动删除就好了。
另外还可以参考其他链接：https://github.com/python-pillow/Pillow/issues/1474，但是对我来说并没用什么用。
简单粗暴方法直接删除就好了。

Error: Segmentation fault (core dumped)

在python环境下运行的时候，出现这种情况。
导入summarywriter出错

>from tensorboardX import SummaryWriterError: Segmentation fault (core dumped)

原因：protobuf版本不对，卸载重新安装

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