How do i list all files of a directory python?

list in the current directory

With listdir in os module you get the files and the folders in the current dir

import os

arr = os.listdir[]

Looking in a directory

arr = os.listdir['c:\\files']

with glob you can specify a type of file to list like this

import glob

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

or

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

get the full path of only files in the current directory

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']

Getting the full path name with os.path.abspath

You get the full path in return

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

Walk: going through sub directories

os.walk returns the root, the directories list and the files list, that is why I unpacked them in r, d, f in the for loop; it, then, looks for other files and directories in the subfolders of the root and so on until there are no subfolders.

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]]

To go up in the directory tree

# Method 1
x = os.listdir['..']

# Method 2
x= os.listdir['/']

Get files of a particular subdirectory with os.listdir[]

import os

x = os.listdir["./content"]

os.walk['.'] - current directory

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

next[os.walk['.']] and 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

next... walk

 [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[] - get only txt files

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

Using glob to get the full path of the files

from path import path
from glob import glob

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

Using os.path.isfile to avoid directories in the list

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

Using pathlib from Python 3.4

import pathlib

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

With list comprehension:

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

Use glob method in pathlib.Path[]

import pathlib

py = pathlib.Path[].glob["*.py"]

Get all and only files with os.walk: checks only in the third element returned, i.e. the list of the files

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

Get only files with next in a directory: returns only the file in the root folder

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

Get only directories with next and walk in a directory, because in the [1] element there are the folders only

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

Get all the subdir names with walk

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

os.scandir[] from Python 3.5 and greater

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]

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