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Grabbing all lesson videos from justinguitar's beginner course
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#!/usr/bin/env python | |
import requests | |
import re | |
from bs4 import BeautifulSoup | |
from subprocess import call, check_output | |
import string | |
def fetch_html(links): | |
returns = [] | |
for link in links: | |
link = "http://www.justinguitar.com/en/" + link | |
print link | |
returns.append(requests.get(link).text) | |
return returns | |
# Return a tuple: (lesson_title, youtube_video_code) | |
def parse_info(page): | |
soup = BeautifulSoup(page) | |
title_raw = soup.find('title').string.split('|')[0] | |
title = filter(lambda x: x in string.printable and x != '\n', title_raw) | |
title = remove_double_space(title) | |
pat = re.compile(u'watch\?v=(.+?)"') | |
matches = pat.findall(page) | |
if len(matches) == 0: | |
return title, None | |
return title, matches[0] | |
# Just for pretty lesson names | |
def remove_double_space(input_str): | |
output = re.sub(' +', ' ', input_str) | |
if output == input_str: | |
return output | |
else: | |
return remove_double_space(output) | |
# Fetch index pages which has links to all beginner lessons | |
r = requests.get('http://www.justinguitar.com/en/BC-000-BeginnersCourse.php') | |
start_page = r.text | |
# Search for all links to lessons | |
pat = re.compile('<a href="(BC-[0-9]{3}-.+?)"') | |
pages = pat.findall(start_page) | |
# Fetch html for each lesson | |
pages_html = fetch_html(pages) | |
# Crawl each lesson page, pull out lesson names and youtube link code | |
youtube_codes = [] | |
for html in pages_html: | |
code = parse_info(html) | |
print code | |
if code not in youtube_codes: | |
youtube_codes.append(code) | |
# Leech the hell out of them | |
for lesson in youtube_codes: | |
# Ignore if lesson has no video | |
if lesson[1] is None: | |
call(['touch', lesson[0]]) | |
continue | |
# Use youtube-dl to get fresh download link and file extension | |
command = ['youtube-dl', lesson[1], '--skip-download', '--get-url', | |
'--get-filename', '-f', '35/34/82/44/43/100'] | |
shell_output = str(check_output(command)) | |
direct_link, fname = shell_output.splitlines() | |
file_ext = fname[fname.rfind('.'):] | |
file_name = lesson[0] + file_ext | |
# Then aria2 for serious multi-part download acceleration | |
print 'Downloading ' + file_name + '...' | |
command = ['aria2c', "-o", file_name, '-x2', | |
"%s" % direct_link] | |
shell_output = check_output(command) | |
print shell_output | |
print 'All done! :)' |
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Hi! is this still working? I'm having errors when running it :( this is python 2 right?