在python中查找文件 [英] Find a file in python

问题描述

我有一个文件，它可能在每个用户的机器上的不同位置.有没有办法实现对文件的搜索?我可以传递文件名和目录树进行搜索的方法吗?

I have a file that may be in a different place on each user's machine. Is there a way to implement a search for the file? A way that I can pass the file's name and the directory tree to search in?

推荐答案

os.walk 是答案，这将找到第一个匹配项:

os.walk is the answer, this will find the first match:

import os

def find(name, path):
    for root, dirs, files in os.walk(path):
        if name in files:
            return os.path.join(root, name)

这将找到所有匹配项:

def find_all(name, path):
    result = []
    for root, dirs, files in os.walk(path):
        if name in files:
            result.append(os.path.join(root, name))
    return result

这将匹配一个模式:

import os, fnmatch
def find(pattern, path):
    result = []
    for root, dirs, files in os.walk(path):
        for name in files:
            if fnmatch.fnmatch(name, pattern):
                result.append(os.path.join(root, name))
    return result

find('*.txt', '/path/to/dir')

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