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| from bs4 import BeautifulSoup | |
| import re | |
| import requests | |
| import csv | |
| import time | |
| import json | |
| # version 1.1 added handling of youtube.com/channel/ | |
| # to already handling of youtube.com/user based channels | |
| # NOTE: url gets to youtube are throttled to 3 seconds between requests | |
| # this is an ad hoc attempt to look like a human to youtube | |
| # so youtube does not start limiting access | |
| wait_between_requests = 3 | |
| """ scrape youtube channel to build table of contents html file and | |
| csv of video information for excel file | |
| note this code has a slow down delay to meet youtube terms of use | |
| """ | |
| # set youtube channel name here | |
| channel_name = 'gjenkinslbcc' | |
| youtube_base = 'https://www.youtube.com/' | |
| # others to try | |
| # gotreehouse howgrowvideo gjenkinslbcc howgrowvideo | |
| # by channel name: | |
| # UCu8YylsPiu9XfaQC74Hr_Gw UCn34N9fj3x92kOGnQQdHkAQ | |
| # UCH4aPBlmmW1Vgs0ykktCMUg | |
| parent_folder = '' # users or channel or empty | |
| def get_soup(url): | |
| """open url and return BeautifulSoup object, | |
| or None if site does not exist""" | |
| result = requests.get(url) | |
| if result.status_code != 200: return None | |
| time.sleep(wait_between_requests) # slow down to human speed | |
| return BeautifulSoup(result.text, 'html.parser') | |
| def channel_section_links(channel_name): | |
| """list of | |
| { 'title': <section title>, | |
| 'link': <url to section play lists> | |
| }""" | |
| global parent_folder | |
| soup = get_soup(f'{youtube_base}/user/{channel_name}/playlists') | |
| if soup is None or 'This channel does not exist.' in soup.text: | |
| url = f'{youtube_base}/channel/{channel_name}/playlists' | |
| soup = get_soup(url) | |
| if soup is None or 'This channel does not exist.' in soup.text: | |
| raise ValueError( | |
| 'The channel does not exists: ' + channel_name) | |
| parent_folder = 'channel/' | |
| play_list_atags = \ | |
| soup.find_all('a', | |
| {'href': re.compile(f'{channel_name}/playlists')}) | |
| # filter out non user play lists next | |
| elements = [{'title': x.text.strip(), | |
| 'link': fix_url(x['href'])} for x in play_list_atags | |
| if x.span and | |
| ('shelf_id=0' not in x['href'])] | |
| # no sections, make up no sections section with default link | |
| if len(elements) == 0: | |
| url = f'{youtube_base}{parent_folder}{channel_name}/playlists' | |
| elements = [ {'title': 'no sections', 'link': url}] | |
| # i.e. https://youtube.com/gotreehouse/playlists | |
| return elements | |
| def fix_url(url): # correct relative urls back to absolute urls | |
| if url[0] == '/': | |
| return youtube_base + url | |
| else: | |
| return url | |
| def get_playlists(section): | |
| """returns list of list of | |
| { 'title': <playlist tile>, <link to all playlist videos> }""" | |
| global parent_folder | |
| print(f" getting playlists for section: {section['title']}") | |
| soup = get_soup(section['link']) | |
| if soup is None: # no playlist, create dummy with default link | |
| url = f'{youtube_base}{parent_folder}{channel_name}/videos' | |
| return [ | |
| {'title': 'No Playlists', 'link':url }] | |
| atags = soup('a', class_='yt-uix-tile-link') | |
| playlists = [] | |
| for a in atags: # find title and link | |
| title = a.text | |
| if title != 'Liked videos': # skip these | |
| url = fix_url(a['href']) | |
| playlists.append({'title': title, 'link': url}) | |
| if not playlists: # no playlists | |
| url = f'{youtube_base}/{parent_folder}{channel_name}/videos' | |
| return [{'title': 'No Playlists', 'link': url}] | |
| return playlists | |
| def parse_video(vurl): | |
| # return dict of | |
| # title, link, views, publication_date, | |
| # description, short_link, likes, dislikes | |
| d = {'link': vurl, 'views': None, 'short_link': vurl, | |
| 'likes': None, 'dislikes': None} | |
| # now get video page and pull information from it | |
| vsoup = get_soup(vurl) | |
| o = vsoup.find('title') | |
| vtitle = o.text.strip() | |
| xending = ' - YouTube' | |
| d['title'] = vtitle[:-len(xending)] \ | |
| if vtitle.endswith(xending) else vtitle | |
| print(f" processing video '{d['title']}'" ) | |
| # o is used in the code following to | |
| # catch missing data targets for scrapping | |
| o = vsoup.find('div', class_='watch-view-count') | |
| if o: | |
| views = o.text | |
| d['views'] = ''.join(c for c in views if c in '0123456789') | |
| o = vsoup.find('strong', class_='watch-time-text') | |
| d['publication_date'] = \ | |
| o.text[len('Published on ') - 1:] if o else '' | |
| o = vsoup.find('div', id='watch-description-text') | |
| d['description'] = o.text if o else '' | |
| o = vsoup.find('meta', itemprop='videoId') | |
| if o: | |
| vid = o['content'] | |
| d['short_link'] = f'https://youtu.be/{vid}' | |
| o = vsoup.find('button', | |
| class_='like-button-renderer-like-button') | |
| if o: | |
| o = o.find('span', class_='yt-uix-button-content') | |
| d['likes'] = o.text if o else '' | |
| o = vsoup.find('button', | |
| class_='like-button-renderer-dislike-button') | |
| if o: | |
| o = o.find('span', class_='yt-uix-button-content') | |
| d['dislikes'] = o.text if o else '' | |
| return d | |
| def add_videos(playlist): | |
| """find videos in playlist[link] | |
| and add their info as playlist[videos] as list""" | |
| surl = playlist['link'] | |
| soup = get_soup(surl) | |
| print(f" getting videos for playlist: {playlist['title']}") | |
| videos = [] | |
| # items are list of video a links from list | |
| items = soup('a', class_='yt-uix-tile-link') | |
| # note first part of look get info from playlist page item, | |
| # and the the last part opens the video and gets more details | |
| if len(items) > 0: | |
| for i in items: | |
| d = dict() | |
| vurl = fix_url(i['href']) | |
| t = i.find_next('span', {'aria-label': True}) | |
| d['time'] = t.text if t else 'NA' | |
| d.update(parse_video(vurl)) | |
| videos.append(d) | |
| else: # must be only one video | |
| d = {'time': 'NA'} | |
| d.update(parse_video(surl)) | |
| videos.append(d) | |
| # add new key to this playlist of list of video infos | |
| playlist['videos'] = videos | |
| print() | |
| def tag(t,c): | |
| return f'<{t}>{c}</{t}>' # return html tag with content | |
| def link(text, url): # return a tag with content and link | |
| return f'<a href="{url}">{text}</a>' | |
| def html_out(channel, sections): | |
| """create and write channel_name.html file""" | |
| title = f'YouTube Channel {channel}' | |
| f = open(f'{channel}.html','w') | |
| template = ('<!doctype html>\n<html lang="en">\n<head>\n' | |
| '<meta charset="utf-8">' | |
| '<title>{}</title>\n</head>\n' | |
| '<body>\n{}\n</body>\n</html>') | |
| parts = list() | |
| parts.append(tag('h1', title)) | |
| for s in sections: | |
| parts.append(tag('h2',link(s['title'], s['link']))) | |
| for pl in s['playlists']: | |
| parts.append(tag('h3', link(pl['title'], pl['link']))) | |
| if len(pl) == 0: | |
| parts.append('<p>Empty Playlist</p>') | |
| else: | |
| parts.append('<ol>') | |
| for v in pl['videos']: | |
| t = '' if v['time'] == 'NA' else f" ({v['time']})" | |
| parts.append(tag('li', link(v['title'], | |
| v['short_link']) + t)) | |
| parts.append('</ol>') | |
| f.write(template.format(channel, '\n'.join(parts))) | |
| f.close() | |
| def csv_out(channel, sections): | |
| """ create and output channel_name.csv | |
| file for import into a spreadsheet or DB""" | |
| headers = ('channel,section,playlist,video,' | |
| 'link,time,views,publication date,' | |
| 'likes,dislikes,description').split(',') | |
| with open(f'{channel}.csv', 'w') as csv_file: | |
| csvf = csv.writer(csv_file, delimiter=',') | |
| csvf.writerow(headers) | |
| for section in sections: | |
| for playlist in section['playlists']: | |
| for video in playlist['videos']: | |
| v = video | |
| line = [channel, | |
| section['title'], | |
| playlist['title'], | |
| v['title']] | |
| line.extend([v['short_link'], | |
| v['time'], v['views'], | |
| v['publication_date'], | |
| v['likes'], v['dislikes'], | |
| v['description']]) | |
| csvf.writerow(line) | |
| def process_channel(channel_name): | |
| sections = channel_section_links(channel_name) | |
| for section in sections: | |
| section['playlists'] = get_playlists(section) | |
| for playlist in section['playlists']: | |
| add_videos(playlist) | |
| return sections | |
| if __name__ == '__main__': | |
| # find channel name by going to channel | |
| # and picking last element from channel url | |
| # for example my channel url is: | |
| # https://www.youtube.com/user/gjenkinslbcc | |
| # my channel name is gjenkinslbcc in this url | |
| # this is set near top of this file | |
| # if the channel is of the form: | |
| # https://www.youtube.com/channel/xyz then supply xyz | |
| print(f'finding sections for youtube.com {channel_name}') | |
| sections = process_channel(channel_name) | |
| # save sections structure to json file | |
| with open(f'{channel_name}.json','w') as f: | |
| f.write(json.dumps(sections, sort_keys=True, indent=4)) | |
| html_out(channel_name, sections) # create web page of channel links | |
| # create a csv file of video info for import into spreadsheet | |
| csv_out(channel_name, sections) | |
| print(f"Program Complete,\n '{channel_name}.html' and" | |
| f" '{channel_name}.csv' have been" | |
| f" written to current directory") | |
| # 3456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 | |
| # 1 2 3 4 5 6 7 8 9 |
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Program to create webpage index of all playlists and videos from any YouTube channel.
Python program that will 'screen scrape' list of playlists and videos from a specified channel and create a web page index to them and a CSV file with video information. As well as a JSON file. I use this to create a nice page that links to all my videos. It can work with any channel although be aware that YouTube has a limit on the max videos per page that may affect very large playlists.
See my post: @ blog article