Traceback (most recent call last): File "D:\pythonProject\main.py", line 157, in <module> for (data, target) in val_loader: File "C:\ProgramData\anaconda3\lib\site-packages\torch\utils\data\dataloader.py", line 634, in __next__ data = self._next_data() File "C:\ProgramData\anaconda3\lib\site-packages\torch\utils\data\dataloader.py", line 678, in _next_data data = self._dataset_fetcher.fetch(index) # may raise StopIteration File "C:\ProgramData\anaconda3\lib\site-packages\torch\utils\data\_utils\fetch.py", line 51, in fetch data = [self.dataset[idx] for idx in possibly_batched_index] File "C:\ProgramData\anaconda3\lib\site-packages\torch\utils\data\_utils\fetch.py", line 51, in <listcomp> data = [self.dataset[idx] for idx in possibly_batched_index] File "D:\pythonProject\main.py", line 35, in __getitem__ image = Image.open(self.filenames[idx]).convert('RGB') File "C:\ProgramData\anaconda3\lib\site-packages\PIL\Image.py", line 3227, in open fp = builtins.open(filename, "rb") FileNotFoundError: [Errno 2] No such file or directory: 'D'但是它抛出这样的错误
时间: 2023-07-21 10:43:48 浏览: 73
这个错误可能是由于文件名中包含空格或其他特殊字符而导致的。在读取文件名时,建议对文件名进行处理,例如使用 `os.path` 模块中的函数来获取文件名的基础部分。例如,可以使用 `os.path.basename` 函数来获取文件名中的基础部分,如下所示:
```python
import os
class FlowerDataset(Dataset):
def __init__(self, filenames, labels, transform):
self.filenames = filenames
self.labels = labels
self.transform = transform
def __len__(self):
return len(self.filenames)
def __getitem__(self, idx):
filename = os.path.basename(self.filenames[idx])
image = Image.open(filename).convert('RGB')
image = self.transform(image)
return image, self.labels[idx]
```
这样,在读取文件时,就可以避免文件名中的特殊字符导致的错误。
相关问题
Traceback (most recent call last): File "F:\pythonProject\main.py", line 1, in <module> import matplotlib.pyplot as plt
引用\[1\]:Traceback (most recent call last): File "test.py", line 2, in <module> import pandas ImportError: No module named pandas 。 引用\[2\]:安装完后执行python detect.py,遇到如下问题: traceback (most recent call last): File "detect.py", line 5, in <module> import cv2 File "/root/anaconda3/envs/python367/lib/python3.6/site-packages/cv2/__init__.py", line 5, in <module> from .cv2 import * ImportError: libGL.so.1: cannot open shared object file: No such file or directory 。 引用\[3\]: 然后安装requiremens.txt,yolov5 4.0版本要求如下: # base ---------------------------------------- matplotlib>=3.2.2 numpy>=1.18.5 opencv-python>=4.1.2 Pillow PyYAML>=5.3.1 scipy>=1.4.1 torch>=1.7.0 torchvision>=0.8.1 tqdm>=4.41.0 # logging ------------------------------------- tensorboard>=2.4.1 # wandb # plotting ------------------------------------ seaborn>=0.11.0 pandas # export -------------------------------------- # coremltools>=4.1 # onnx>=1.8.1 # scikit-learn==0.19.2 # for coreml quantization # extras -------------------------------------- thop # FLOPS computation pycocotools>=2.0 # COCO mAP 。 问题:Traceback (most recent call last): File "F:\pythonProject\main.py", line 1, in <module> import matplotlib.pyplot as plt
回答: 根据您提供的引用内容,问题出现在导入matplotlib.pyplot时。根据引用\[1\],错误信息显示没有找到pandas模块。这可能是因为您的环境中没有安装pandas模块。您可以尝试使用pip install pandas命令来安装pandas模块。另外,根据引用\[2\],错误信息显示找不到libGL.so.1共享对象文件。这可能是由于缺少libGL.so.1库文件导致的。您可以尝试安装相应的库文件来解决此问题。最后,根据引用\[3\],要使用matplotlib.pyplot,您需要确保已安装了matplotlib模块。您可以使用pip install matplotlib命令来安装matplotlib模块。如果问题仍然存在,请确保您的环境中已正确安装了所有所需的依赖项。
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Traceback (most recent call last): File "D:\pythonProject\main.py", line 43, in <module> for i in range(strainZX.shape[0]): AttributeError: 'dvector' object has no attribute 'shape'
这个错误提示表示在`strainZX`这个`dvector`对象上无法使用`shape`属性,因为`dvector`对象并没有`shape`属性。
`dvector`是LS-DYNA Python接口中的一种数据类型,它表示一个包含双精度浮点数的向量。如果要获取`dvector`对象中的数据个数,可以使用`size()`方法。因此,你可以使用以下代码将`strainZX`中的每一个值打印出来:
```python
strainZX = br.get_data(bdt.BINOUT_ELOUT_STRAIN_ZX, idtype=bit.BINOUT_ELOUT_ID_SHELL, id=100, datatype_option=bdto.BINOUT_DATATYPE_ELOUT_LOWER)
n_steps = strainZX.size() // num_integration_points
for i in range(n_steps):
for j in range(num_integration_points):
print("Time step: {}, Integration point: {}, Value: {}".format(i+1, j+1, strainZX[i * num_integration_points + j]))
```
其中,`num_integration_points`表示该壳单元的积分点数。`strainZX.size()`方法返回`dvector`对象中包含的浮点数个数,因此可以通过`strainZX.size() // num_integration_points`计算出时间步数,进而遍历所有的时间步和积分点,将每一个值打印出来。