How to List Only Files in a Directory Using Python?

Listing Files in a Directory in Python

Listing all files in a directory is a common task in Python programming. To accomplish this, you have several options.

One approach is to use the os.listdir() function. This function returns a list of all files and directories in the specified directory. However, it does not distinguish between files and directories. To list only files, you can use the os.path.isfile() function.

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

mypath = "/path/to/directory"
onlyfiles = [f for f in listdir(mypath) if isfile(join(mypath, f))]

Another option is to use the os.walk() function. This function yields two lists for each directory it visits: one for files and one for directories.

from os import walk

mypath = "/path/to/directory"
f = []

for (dirpath, dirnames, filenames) in walk(mypath):
    f.extend(filenames)
    break

You can also use a shorter version of this code:

from os import walk

mypath = "/path/to/directory"
filenames = next(walk(mypath), (None, None, []))[2]  # [] if no file

These options provide various ways to list all files in a directory in Python. Choose the one that best suits your specific needs.

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