Windows 上包含回车符 return 的文件名无法被 Python 识别

Question

我想select一个文件，但是文件名包含一个回车return所以.isfile()不断returns False。当我使用 .fnmatch() 时，它会打印文件名，包括结尾的 回车符 return.

import fnmatch
import os
local_path = 'd:'+os.sep
filename = '1F80813965EDAA4FC5BA44A91E0DBFF1'
local_file = os.path.join(local_path, filename+'\r')

print( os.path.isfile(local_file) ) 
# Returns False

for file in os.listdir(local_path):
    if fnmatch.fnmatch(file, filename+'?'):
        print(repr(file)) 
        # Returns 'd:\1F80813965EDAA4FC5BA44A91E0DBFF1\r'

这里有什么问题？是Windows吗？是NTFS分区吗？还是os.path.join()函数不理解'\r'？

Answer 1

在您的代码中，以下行创建文件路径。你可以试试去掉里面的\r

local_file = os.path.join(local_path, filename)

Answer 2

Windows 不允许 special characters in filename:

[...]

Use a backslash (\) to separate the components of a path. The backslash divides the file name from the path to it, and one directory name from another directory name in a path. You cannot use a backslash in the name for the actual file or directory because it is a reserved character that separates the names into components.

[...]

Use any character in the current code page for a name, including Unicode characters and characters in the extended character set (128–255), except for the following:

The following reserved characters:

< (less than)

> greater than)

: (colon)

" (double quote)

/ (forward slash)

\ (backslash)

| (vertical bar or pipe)

? (question mark)

* (asterisk)

Integer value zero, sometimes referred to as the ASCII NUL character.

Characters whose integer representations are in the range from 1 through 31, except for alternate data streams where these characters are allowed. For more information about file streams, see File Streams.

Any other character that the target file system does not allow.

如果您从另一个系统复制了文件，这可能是个问题。如果您需要在 Windows 中使用此文件，您可能需要在复制前重命名它。

Windows 上包含回车符 return 的文件名无法被 Python 识别

Filename containing carriage return on Windows is not recognised by Python

python

windows

carriage-return