Sometimes, we need to list all directories in a certain path. 
This simple task can be done in a few different ways:

# Using `os.listdir()`

import os

open("/tmp/test.txt", 'a') # lets create a blank file

arr = os.listdir("/tmp")
print(arr)

It needs only one parameter, the path we want to list.

# Using `glob.glob()`

import glob

open("/tmp/test.txt", 'a') # lets create a blank file

arr = glob.glob("/tmp/*.txt")
print(arr)

Its use is basically the same as `listdir`.
> Note: `glob.glob()` also accepts wildcards.

How to list directory in Python 3

Using os.listdir() or glob.glob() in Python 3 lists directories in a given path.

Using os.listdir()