A python script to count the number of files in particular folder and print the number of files in return ?

Question

I am trying to count the number of files in a folder with python script but not getting the appropriate script. In which I can change the path and can find out the count of other folder files.

It doesn't matter for me how long the script is but need the clear script and it would be better if you can explain it also.

Answer 1

import os

def count_files(in_directory):
    joiner= (in_directory + os.path.sep).__add__
    return sum(
        os.path.isfile(filename)
        for filename
        in map(joiner, os.listdir(in_directory))
    )

>>> count_files("/home/ashok/")
12