Python Pathlib 异常行为

Question

I can find all the files in the subfolders of a folder path with specific filetypes in this way:

list(Path(folder_path).glob('**/*.[jpg][jpeg][png]*'))

But if I change the code to try and find other filetypes (like jfif or bmp ), with some filetypes the code works and with the others, it can't find the filepaths:

list(Path(folder_path).glob('**/*.[jpg][jpeg][jfif][png]*'))

Why isn't this code working properly?

Answer 1

According to the pathlib docs , the pattern syntax is the same as for fnmatch . A pattern like [jpg] matches a single character, which is either a j , a p or a g . I don't think this type of pattern can handle alternatives — you have to use some other mechanism for filtering; something like foo.suffix in [...] or a regexp.

Answer 2

Regex style "solution":

from pathlib import Path
from re import search, IGNORECASE

folder_path = "."
images = r".*\.(jpg|jpeg|jfif|png)$"

files = list(filter(lambda f: search(images, str(f)), Path(folder_path).rglob("*")))