尝试为特定文件名绘制图像

Question

我正在尝试使用 matplotlib 从我的文件夹中打印一堆图片，但是我不确定如何修复此错误。

基本上，我正在尝试获取具有“_ 0 _”或“_ 1 _”模式的特定文件，但它给了我一个错误并且不确定如何修复它。

我放了一张我正在尝试复制的代码示例的屏幕截图，如果您有任何问题，请告诉我。欢迎任何帮助！

import os
import matplotlib.pyplot as plt
from matplotlib.image import imread
#folder = '/content/drive/MyDrive/Colab Notebooks/data/dogs-vs-cats/train/'
plt.figure(figsize=(10,10))
for i in range(10): 
    plt.subplot(4,5,i+1)
    filename = glob.glob(os.path.join(folder,'*_1_*.jpg'))
    #for filename in folder: 
    #filename = glob.glob(folder +'*_1_*.jpg')
    #filename = glob.glob('/content/drive/MyDrive/Colab Notebooks/train_val'/'*_1_*.jpg')
    #filename = folder + '*_1_*.jpg'
    if not os.path.exists(filename):
    #if not os.path.exists(filename):
      print ('No such file:'+ filename)
    image = imread(filename)
    plt.imshow(image)
for i in range(10): 
    plt.subplot(4,5,i+11)
    plt.subplot(4,5,i+11)
    plt.subplot(4,5,i+11)
    filename = glob.glob(os.path.join(folder,'*_0_*.jpg'))
    #filename = glob.glob('/content/drive/MyDrive/Colab Notebooks/train_val'/'*_0_*.jpg')
    #filename = folder + ' *_0_*.jpg'
    image = imread(filename)
    plt.imshow(image)
plt.show()

错误信息：

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-21-8c96486bb2b7> in <module>()
     11     #filename = glob.glob('/content/drive/MyDrive/Colab Notebooks/train_val'/'*_1_*.jpg')
     12     #filename = folder + '*_1_*.jpg'
---> 13     if not os.path.exists(filename):
     14     #if not os.path.exists(filename):
     15       print ('No such file:'+ filename)

/usr/lib/python3.7/genericpath.py in exists(path)
     17     """Test whether a path exists.  Returns False for broken symbolic links"""
     18     try:
---> 19         os.stat(path)
     20     except OSError:
     21         return False

TypeError: stat: path should be string, bytes, os.PathLike or integer, not list

我想要完成的事情：

Answer 1

glob.glob()函数returns一个列表，错误信息告诉你

TypeError: stat: path should be string, bytes, os.PathLike or integer, not list

你的循环应该是这样的，而不是：


for i in range(10): 
    plt.subplot(4, 5, i+1)
    filelist = glob.glob(os.path.join(folder, '*_1_*.jpg'))
    to_process = []
    for entry in filelist:
        if not os.path.exists(entry):
            print ("File {entry} does not exist".format(entry=entry))
            continue
        else:
            to_process.append(entry)

    for entry in to_process:
        # ... other desired processing

尝试为特定文件名绘制图像

Trying to plot images for specific file names

python

matplotlib

path

operating-system