在 Python 中使用 os.walk 时出现错误 2

Errno 2 while using os.walk in Python

这是一个搜索大于指定大小的文件的脚本:

def size_scan(folder, size=100000000):
    """Scan folder for files bigger than specified size

    folder: abspath
    size: size in bytes
    """
    flag = False

    for folder, subfolders, files in os.walk(folder):
        # skip 'anaconda3' folder
        if 'anaconda3' in folder:
            continue

        for file in files: 
            file_path = os.path.join(folder, file)
            if os.path.getsize(file_path) > size:
                print(file_path, ':', os.path.getsize(file_path))
                flag = True

    if not flag:
        print('There is nothing, Cleric')

我在扫描 Linux 中的根文件夹时收到以下错误消息:

Traceback (most recent call last):

  File "<ipython-input-123-d2865b8a190c>", line 1, in <module>
    runfile('/home/ozramsay/Code/sizescan.py', wdir='/home/ozramsay/Code')

  File "/home/ozramsay/anaconda3/lib/python3.6/site-packages/spyder/utils/site/sitecustomize.py", line 880, in runfile
    execfile(filename, namespace)

  File "/home/ozramsay/anaconda3/lib/python3.6/site-packages/spyder/utils/site/sitecustomize.py", line 102, in execfile
    exec(compile(f.read(), filename, 'exec'), namespace)

  File "/home/ozramsay/Code/sizescan.py", line 32, in <module>
    size_scan('/')

  File "/home/ozramsay/Code/sizescan.py", line 25, in size_scan
    if os.path.getsize(file_path) > size:

  File "/home/ozramsay/anaconda3/lib/python3.6/genericpath.py", line 50, in getsize
    return os.stat(filename).st_size

FileNotFoundError: [Errno 2] No such file or directory: '/run/udev/link.dvdrw'

我猜是因为 Python 解释器无法扫描自身,所以我试图从搜索中跳过 'anaconda3' 文件夹(上面代码中用#skip anaconda 文件夹标记)。但是,错误消息仍然相同。

谁能解释一下?

(如果这里不允许此类问题,请让我知道,应该编辑。谢谢)

文件 python 正在尝试获取 os.stat(filename).st_size 的大小是损坏的 link。损坏的 link 是目标已被移除的 link。它很像 Internet link 给出 404。要在脚本中修复此问题,请检查它是否是文件(首选),或使用 try/catch(非首选)。要检查文件是否是文件而不是损坏的 link,请使用 os.path.isfile(file_path)。您的代码应如下所示:

def size_scan(folder, size=100000000):
"""Scan folder for files bigger than specified size

folder: abspath
size: size in bytes
"""
flag = False

for folder, subfolders, files in os.walk(folder):
    # skip 'anaconda3' folder
    if 'anaconda3' in folder:
        continue

    for file in files: 
        file_path = os.path.join(folder, file)
        if os.path.isfile(file_path) and (os.path.getsize(file_path) > size):
            print(file_path, ':', os.path.getsize(file_path))
            flag = True

if not flag:
    print('There is nothing, Cleric')

因此,在获取大小之前,它会检查文件是否真的存在,并跟踪所有 link 以确保它存在。 .