OS Module

The os module in Python provides functions for manipulating files and directories, as well as accessing system-related information.

Task

Write a program to list all the files and directories in a given directory. The program should print the name of each item and indicate whether it is a file or a directory.

JavaScript implementation

import fs from 'fs';
import path from 'path';

function listItems(directory) {
  const items = fs.readdirSync(directory);

  items.forEach((item) => {
    const itemPath = path.join(directory, item);
    const stats = fs.statSync(itemPath);
    console.log(`${item}：${stats.isDirectory() ? 'directory' : 'file'}`);
  });
}

listItems('../');

Python implementation

import os

def list_items(directory):
    items = os.listdir(directory)

    for item in items:
        item_path = os.path.join(directory, item)
        if os.path.isdir(item_path):
            print(f"{item}: directory")
        else:
            print(f"{item}: file")

list_items('../')

Difference Quick View

Feature	JavaScript	Python
Check if file or directory exists	fs.existsSync(path)	os.path.exists(path)
Create directory	fs.mkdirSync(path)	os.mkdir(path)
List directory	fs.readdirSync(path)	os.listdir(path)

Resources

• https://docs.python.org/3/library/os.html