仅获取文件列表（无子目录）的单行解决方案：

filenames = next(os.walk(path))[2]

或绝对路径名：

paths = [os.path.join(path, fn) for fn in next(os.walk(path))[2]]

当前目录中的列表

使用os模块中的listdir，可以获得当前目录中的文件和文件夹

import os

arr = os.listdir()

查找目录

arr = os.listdir('c:\\files')

使用glob，可以指定要列出的文件类型，如下所示

import glob

txtfiles = []
for file in glob.glob("*.txt"):
    txtfiles.append(file)

or

mylist = [f for f in glob.glob("*.txt")]

仅获取当前目录中文件的完整路径

import os
from os import listdir
from os.path import isfile, join

cwd = os.getcwd()
onlyfiles = [os.path.join(cwd, f) for f in os.listdir(cwd) if 
os.path.isfile(os.path.join(cwd, f))]
print(onlyfiles) 

['G:\\getfilesname\\getfilesname.py', 'G:\\getfilesname\\example.txt']

使用os.path.abspath获取完整路径名

你得到了完整的路径作为回报

 import os
 files_path = [os.path.abspath(x) for x in os.listdir()]
 print(files_path)
 
 ['F:\\documenti\applications.txt', 'F:\\documenti\collections.txt']

漫游：遍历子目录

os.walk返回根目录、目录列表和文件列表，这就是为什么我在for循环中在r、d、f中解压缩它们；然后，它在根目录的子文件夹中查找其他文件和目录，依此类推，直到没有子文件夹为止。

import os

# Getting the current work directory (cwd)
thisdir = os.getcwd()

# r=root, d=directories, f = files
for r, d, f in os.walk(thisdir):
    for file in f:
        if file.endswith(".docx"):
            print(os.path.join(r, file))

在目录树中向上

# Method 1
x = os.listdir('..')

# Method 2
x= os.listdir('/')

使用os.listdir（）获取特定子目录的文件

import os

x = os.listdir("./content")

os.walk（'.'）-当前目录

 import os
 arr = next(os.walk('.'))[2]
 print(arr)
 
 >>> ['5bs_Turismo1.pdf', '5bs_Turismo1.pptx', 'esperienza.txt']

next（os.walk（'.'））和os.path.join（'dir'，'file'）

 import os
 arr = []
 for d,r,f in next(os.walk("F:\\_python")):
     for file in f:
         arr.append(os.path.join(r,file))

 for f in arr:
     print(files)

>>> F:\\_python\\dict_class.py
>>> F:\\_python\\programmi.txt

下一个步行

 [os.path.join(r,file) for r,d,f in next(os.walk("F:\\_python")) for file in f]
 
 >>> ['F:\\_python\\dict_class.py', 'F:\\_python\\programmi.txt']

os.walk

x = [os.path.join(r,file) for r,d,f in os.walk("F:\\_python") for file in f]
print(x)

>>> ['F:\\_python\\dict.py', 'F:\\_python\\progr.txt', 'F:\\_python\\readl.py']

os.listdir（）-仅获取txt文件

 arr_txt = [x for x in os.listdir() if x.endswith(".txt")]
 

使用glob获取文件的完整路径

from path import path
from glob import glob

x = [path(f).abspath() for f in glob("F:\\*.txt")]

使用os.path.isfile避免列表中的目录

import os.path
listOfFiles = [f for f in os.listdir() if os.path.isfile(f)]

使用Python 3.4中的pathlib

import pathlib

flist = []
for p in pathlib.Path('.').iterdir():
    if p.is_file():
        print(p)
        flist.append(p)

通过列表理解：

flist = [p for p in pathlib.Path('.').iterdir() if p.is_file()]

在pathlib.Path（）中使用glob方法

import pathlib

py = pathlib.Path().glob("*.py")

使用os.walk获取所有文件：仅检查返回的第三个元素，即文件列表

import os
x = [i[2] for i in os.walk('.')]
y=[]
for t in x:
    for f in t:
        y.append(f)

仅获取目录中带有next的文件：仅返回根文件夹中的文件

 import os
 x = next(os.walk('F://python'))[2]

使用next只获取目录并在目录中行走，因为在[1]元素中只有文件夹

 import os
 next(os.walk('F://python'))[1] # for the current dir use ('.')
 
 >>> ['python3','others']

使用walk获取所有分区名称

for r,d,f in os.walk("F:\\_python"):
    for dirs in d:
        print(dirs)

Python 3.5及更高版本的os.scandir（）

import os
x = [f.name for f in os.scandir() if f.is_file()]

# Another example with `scandir` (a little variation from docs.python.org)
# This one is more efficient than `os.listdir`.
# In this case, it shows the files only in the current directory
# where the script is executed.

import os
with os.scandir() as i:
    for entry in i:
        if entry.is_file():
            print(entry.name)

这是我的通用函数。它返回文件路径列表而不是文件名，因为我发现这更有用。它有几个可选的参数，使其具有通用性。例如，我经常将其与pattern=“*.txt”或subfolders=True等参数一起使用。

import os
import fnmatch

def list_paths(folder='.', pattern='*', case_sensitive=False, subfolders=False):
    """Return a list of the file paths matching the pattern in the specified 
    folder, optionally including files inside subfolders.
    """
    match = fnmatch.fnmatchcase if case_sensitive else fnmatch.fnmatch
    walked = os.walk(folder) if subfolders else [next(os.walk(folder))]
    return [os.path.join(root, f)
            for root, dirnames, filenames in walked
            for f in filenames if match(f, pattern)]

从目录及其所有子目录获取完整文件路径

import os

def get_filepaths(directory):
    """
    This function will generate the file names in a directory 
    tree by walking the tree either top-down or bottom-up. For each 
    directory in the tree rooted at directory top (including top itself), 
    it yields a 3-tuple (dirpath, dirnames, filenames).
    """
    file_paths = []  # List which will store all of the full filepaths.

    # Walk the tree.
    for root, directories, files in os.walk(directory):
        for filename in files:
            # Join the two strings in order to form the full filepath.
            filepath = os.path.join(root, filename)
            file_paths.append(filepath)  # Add it to the list.

    return file_paths  # Self-explanatory.

# Run the above function and store its results in a variable.   
full_file_paths = get_filepaths("/Users/johnny/Desktop/TEST")

---

我在上述函数中提供的路径包含3个文件，其中两个位于根目录中，另一个位于名为“subfolder”的子文件夹中打印将打印列表的完整文件路径：['/Users/johnny/Desktop/TEST/file1.txt'，'/Users/johnny/Desctop/TEST-file2.txt'，'/Users/johnny/Desktop/STEST/SUBFOLDER/file3.dat']

如果愿意，您可以打开并阅读内容，或者只关注扩展名为“.dat”的文件，如下面的代码所示：

for f in full_file_paths:
  if f.endswith(".dat"):
    print f

/用户/johnny/Desktop/TEST/SUBFOLDER/file3.dat

对于Python 2：

pip install rglob

那就做吧

import rglob
file_list = rglob.rglob("/home/base/dir/", "*")
print file_list

def list_files(path):
    # returns a list of names (with extension, without full path) of all files 
    # in folder path
    files = []
    for name in os.listdir(path):
        if os.path.isfile(os.path.join(path, name)):
            files.append(name)
    return files