udemy-dl

Goals

A python script using asyncio to speedup downloading for Chinese udemy users who cannot watch video online because of China GFW

Thanks

This project is based on udemy-dl and adds asyncio support to it.

Features

• Asynchronously download course videos.
• Resume capability for a course video.
• Download specific chapter in a course (option: -c / --chapter).
• Download specific lecture in a chapter (option: -l / --lecture).
• Download chapter(s) by providing range in a course (option: --chapter-start, --chapter-end).
• Download lecture(s) by providing range in a chapter (option: --lecture-start, --lecture-end).
• Download course to user requested path (option: -o / --output).

Requirements

• Python>=3.7

• requests

• aiohttp

Download async-udemy-dl

You can download the latest version of async-udemy-dl by cloning the GitHub repository.

git clone https://github.com/Firkraag/async-udemy-dl

Pip install

pip install async-udemy-dl

After installation, pip will install a script named async-udemy-dl in your executable path, so async-udemy-dl can replace python async-udemy-dl.py in the Usage section.

Usage

This project uses cookies to authenticate with, so you must specify cookie file on commandline with option -k cookies_file. Please follow Extracting Cookies / Request Headers to save udemy cookies to files before using this script.

Download a course

python async-udemy-dl.py -k COOKIES_FILE COURSE_URL

Download course to a specific location

python async-udemy-dl.py -k COOKIES_FILE COURSE_URL -o "/path/to/directory/"

Download specific chapter from a course

python async-udemy-dl.py -k COOKIES_FILE COURSE_URL -c NUMBER

Download specific lecture from a chapter

python async-udemy-dl.py -k COOKIES_FILE COURSE_URL -c NUMBER -l NUMBER

Download lecture(s) range from a specific chapter

python async-udemy-dl.py COURSE_URL -k COOKIES_FILE -c NUMBER --lecture-start NUMBER --lecture-end NUMBER

Download chapter(s) range from a course

python async-udemy-dl.py COURSE_URL -k COOKIES_FILE --chapter-start NUMBER --chapter-end NUMBER

Download specific lecture from chapter(s) range

python async-udemy-dl.py COURSE_URL -k COOKIES_FILE --chapter-start NUMBER --chapter-end NUMBER --lecture NUMBER

Download lecture(s) range from chapter(s) range

python async-udemy-dl.py COURSE_URL -k COOKIES_FILE --chapter-start NUMBER --chapter-end NUMBER --lecture-start NUMBER --lecture-end NUMBER

Extracting Cookies / Request Headers

• Login to your udemy account via browser.

• Once you are logged in right click on page the search for option called Inspect Element and click on that.

• Under that look for Network Tab and click on that. Under that Network Tab click on Requests type XHR .

• Now click on My Courses in the Udemy navbar and refresh the page you will see some requests under Network Tab.

• Right click on request links to udemy.com/api-2.0/. Simply copy Request Headers and save to text file.

• The above guide is for Firefox users. Chrome Users can follow guide by @lamlephamngoc.

• Done run the async-udemy-dl against that text file it will start downloading the course.

Advanced Usage

Author: Firkraag (Firkraag)

usage: async-udemy-dl.py [-h] [-v] -k cookie_file [-d] [-o] [-c] [-l]
                   [--chapter-start] [--chapter-end] [--lecture-start]
                   [--lecture-end] course

A cross-platform python based utility to download courses from udemy for
personal offline use.

positional arguments:
  course            Udemy course.

General:
  -h, --help        Shows the help.
  -v, --version     Shows the version.

Authentication:
  -k , --cookies cookies_file    Cookies to authenticate with.

Advance:
  -d, --debug       output debug info to screen
  -o , --output     Download to specific directory, if not specified, download to current directory.
  -c , --chapter    Download specific chapter from course.
  -l , --lecture    Download specific lecture from chapter(s).
  --chapter-start   Download from specific position within course.
  --chapter-end     Download till specific position within course.
  --lecture-start   Download from specific position within chapter(s).
  --lecture-end     Download till specific position within chapter(s).

Example:
  python async-udemy-dl.py  COURSE_URL -k cookies.txt