Python递归文件夹读取

我有c++ /Obj-C背景，我刚刚发现Python(写了大约一个小时)。我正在写一个脚本递归地读取文件夹结构中的文本文件的内容。

我的问题是，我写的代码将只工作于一个文件夹深度。我可以在代码中看到为什么(见#hardcoded path)，我只是不知道如何使用Python，因为我对它的经验只是全新的。

Python代码:

import os
import sys

rootdir = sys.argv[1]

for root, subFolders, files in os.walk(rootdir):

    for folder in subFolders:
        outfileName = rootdir + "/" + folder + "/py-outfile.txt" # hardcoded path
        folderOut = open( outfileName, 'w' )
        print "outfileName is " + outfileName

        for file in files:
            filePath = rootdir + '/' + file
            f = open( filePath, 'r' )
            toWrite = f.read()
            print "Writing '" + toWrite + "' to" + filePath
            folderOut.write( toWrite )
            f.close()

        folderOut.close()

当前回答

在我看来，os.walk()有点太复杂和啰嗦了。你可以做接受的答案清洁:

all_files = [str(f) for f in pathlib.Path(dir_path).glob("**/*") if f.is_file()]

with open(outfile, 'wb') as fout:
    for f in all_files:
        with open(f, 'rb') as fin:
            fout.write(fin.read())
            fout.write(b'\n')

2021-09-05 09:13:53

其他回答

如果你想要一个给定目录下的所有路径的平面列表(比如find。在壳中):

   files = [ 
       os.path.join(parent, name)
       for (parent, subdirs, files) in os.walk(YOUR_DIRECTORY)
       for name in files + subdirs
   ]

若要只包含基本目录下文件的完整路径，请省略+ subdirs。

2019-02-05 00:31:14

这招对我很管用:

import glob

root_dir = "C:\\Users\\Scott\\" # Don't forget trailing (last) slashes    
for filename in glob.iglob(root_dir + '**/*.jpg', recursive=True):
     print(filename)
     # do stuff

2020-07-09 12:18:57

pathlib库非常适合处理文件。你可以在Path对象上做这样的递归glob。

from pathlib import Path

for elem in Path('/path/to/my/files').rglob('*.*'):
    print(elem)

2019-12-27 01:06:18

操作系统。Walk默认情况下执行递归遍历。对于每个dir，它从根目录开始生成一个3元组(dirpath, dirnames, filename)

from os import walk
from os.path import splitext, join

def select_files(root, files):
    """
    simple logic here to filter out interesting files
    .py files in this example
    """

    selected_files = []

    for file in files:
        #do concatenation here to get full path 
        full_path = join(root, file)
        ext = splitext(file)[1]

        if ext == ".py":
            selected_files.append(full_path)

    return selected_files

def build_recursive_dir_tree(path):
    """
    path    -    where to begin folder scan
    """
    selected_files = []

    for root, dirs, files in walk(path):
        selected_files += select_files(root, files)

    return selected_files

2011-08-23 13:24:12

试试这个:

import os
import sys

for root, subdirs, files in os.walk(path):

    for file in os.listdir(root):

        filePath = os.path.join(root, file)

        if os.path.isdir(filePath):
            pass

        else:
            f = open (filePath, 'r')
            # Do Stuff

2017-07-13 16:46:36

Python递归文件夹读取

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