445 lines
16 KiB
Python
445 lines
16 KiB
Python
from __future__ import unicode_literals
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import random
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import re
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import time
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from .common import InfoExtractor
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from ..compat import (
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compat_str,
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compat_urlparse,
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)
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from ..utils import (
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ExtractorError,
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float_or_none,
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int_or_none,
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KNOWN_EXTENSIONS,
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parse_filesize,
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str_or_none,
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try_get,
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unescapeHTML,
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update_url_query,
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unified_strdate,
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unified_timestamp,
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url_or_none,
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)
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class BandcampBaseIE(InfoExtractor):
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"""Provide base functions for Bandcamp extractors"""
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def _extract_json_from_html_data_attribute(self, webpage, suffix, video_id):
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json_string = self._html_search_regex(
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r' data-%s="([^"]*)' % suffix,
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webpage, '%s json' % suffix, default='{}')
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return self._parse_json(json_string, video_id)
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def _parse_json_track(self, json):
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formats = []
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file_ = json.get('file')
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if isinstance(file_, dict):
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for format_id, format_url in file_.items():
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if not url_or_none(format_url):
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continue
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ext, abr_str = format_id.split('-', 1)
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formats.append({
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'format_id': format_id,
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'url': self._proto_relative_url(format_url, 'http:'),
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'ext': ext,
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'vcodec': 'none',
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'acodec': ext,
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'abr': int_or_none(abr_str),
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})
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return {
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'duration': float_or_none(json.get('duration')),
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'id': str_or_none(json.get('track_id') or json.get('id')),
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'title': json.get('title'),
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'title_link': json.get('title_link'),
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'number': int_or_none(json.get('track_num')),
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'formats': formats
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}
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class BandcampIE(BandcampBaseIE):
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IE_NAME = "Bandcamp:track"
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_VALID_URL = r'https?://[^/]+\.bandcamp\.com/track/(?P<title>[^/?#&]+)'
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_TESTS = [{
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'url': 'http://youtube-dl.bandcamp.com/track/youtube-dl-test-song',
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'md5': 'c557841d5e50261777a6585648adf439',
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'info_dict': {
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'id': '1812978515',
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'ext': 'mp3',
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'title': "youtube-dl \"'/\\\u00e4\u21ad - youtube-dl \"'/\\\u00e4\u21ad - youtube-dl test song \"'/\\\u00e4\u21ad",
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'duration': 9.8485,
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'uploader': "youtube-dl \"'/\\\u00e4\u21ad",
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'timestamp': 1354224127,
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'upload_date': '20121129',
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},
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'_skip': 'There is a limit of 200 free downloads / month for the test song'
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}, {
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# free download
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'url': 'http://benprunty.bandcamp.com/track/lanius-battle',
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'md5': '5d92af55811e47f38962a54c30b07ef0',
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'info_dict': {
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'id': '2650410135',
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'ext': 'aiff',
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'title': 'Ben Prunty - Lanius (Battle)',
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'thumbnail': r're:^https?://.*\.jpg$',
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'uploader': 'Ben Prunty',
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'timestamp': 1396508491,
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'upload_date': '20140403',
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'release_date': '20140403',
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'duration': 260.877,
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'track': 'Lanius (Battle)',
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'track_number': 1,
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'track_id': '2650410135',
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'artist': 'Ben Prunty',
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'album': 'FTL: Advanced Edition Soundtrack',
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},
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}, {
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# no free download, mp3 128
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'url': 'https://relapsealumni.bandcamp.com/track/hail-to-fire',
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'md5': 'fec12ff55e804bb7f7ebeb77a800c8b7',
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'info_dict': {
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'id': '2584466013',
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'ext': 'mp3',
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'title': 'Mastodon - Hail to Fire',
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'thumbnail': r're:^https?://.*\.jpg$',
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'uploader': 'Mastodon',
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'timestamp': 1322005399,
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'upload_date': '20111122',
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'release_date': '20040207',
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'duration': 120.79,
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'track': 'Hail to Fire',
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'track_number': 5,
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'track_id': '2584466013',
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'artist': 'Mastodon',
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'album': 'Call of the Mastodon',
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},
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}]
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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title = mobj.group('title')
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url_track_title = title
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webpage = self._download_webpage(url, title)
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thumbnail = self._html_search_meta('og:image', webpage, default=None)
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json_tralbum = self._extract_json_from_html_data_attribute(webpage, "tralbum", url_track_title)
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json_embed = self._extract_json_from_html_data_attribute(webpage, "embed", url_track_title)
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json_tracks = json_tralbum.get('trackinfo')
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if not json_tracks:
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raise ExtractorError('Could not extract track')
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track = self._parse_json_track(json_tracks[0])
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artist = json_tralbum.get('artist')
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album_title = json_embed.get('album_title')
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json_album = json_tralbum.get('packages')
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if json_album:
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json_album = json_album[0]
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album_publish_date = json_album.get('album_publish_date')
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album_release_date = json_album.get('album_release_date')
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else:
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album_publish_date = None
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album_release_date = json_tralbum.get('album_release_date')
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timestamp = unified_timestamp(json_tralbum.get('current', {}).get('publish_date') or album_publish_date)
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release_date = unified_strdate(album_release_date)
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download_link = self._search_regex(
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r'freeDownloadPage(?:["\']|"):\s*(["\']|")(?P<url>(?:(?!\1).)+)\1', webpage,
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'download link', default=None, group='url')
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if download_link:
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track_id = self._search_regex(
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r'\?id=(?P<id>\d+)&',
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download_link, 'track id')
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download_webpage = self._download_webpage(
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download_link, track_id, 'Downloading free downloads page')
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blob = self._parse_json(
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self._search_regex(
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r'data-blob=(["\'])(?P<blob>{.+?})\1', download_webpage,
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'blob', group='blob'),
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track_id, transform_source=unescapeHTML)
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info = try_get(
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blob, (lambda x: x['digital_items'][0],
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lambda x: x['download_items'][0]), dict)
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if info:
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downloads = info.get('downloads')
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if isinstance(downloads, dict):
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if not artist:
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artist = info.get('artist')
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if not thumbnail:
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thumbnail = info.get('thumb_url')
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download_formats = {}
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download_formats_list = blob.get('download_formats')
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if isinstance(download_formats_list, list):
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for f in blob['download_formats']:
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name, ext = f.get('name'), f.get('file_extension')
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if all(isinstance(x, compat_str) for x in (name, ext)):
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download_formats[name] = ext.strip('.')
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for format_id, f in downloads.items():
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format_url = f.get('url')
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if not format_url:
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continue
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# Stat URL generation algorithm is reverse engineered from
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# download_*_bundle_*.js
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stat_url = update_url_query(
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format_url.replace('/download/', '/statdownload/'), {
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'.rand': int(time.time() * 1000 * random.random()),
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})
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format_id = f.get('encoding_name') or format_id
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stat = self._download_json(
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stat_url, track_id, 'Downloading %s JSON' % format_id,
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transform_source=lambda s: s[s.index('{'):s.rindex('}') + 1],
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fatal=False)
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if not stat:
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continue
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retry_url = url_or_none(stat.get('retry_url'))
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if not retry_url:
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continue
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track['formats'].append({
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'url': self._proto_relative_url(retry_url, 'http:'),
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'ext': download_formats.get(format_id),
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'format_id': format_id,
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'format_note': f.get('description'),
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'filesize': parse_filesize(f.get('size_mb')),
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'vcodec': 'none',
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})
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self._sort_formats(track['formats'])
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title = '%s - %s' % (artist, track.get('title')) if artist else track.get('title')
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return {
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'album': album_title,
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'artist': artist,
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'duration': track['duration'],
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'formats': track['formats'],
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'id': track['id'],
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'release_date': release_date,
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'thumbnail': thumbnail,
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'timestamp': timestamp,
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'title': title,
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'track': track['title'],
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'track_id': track['id'],
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'track_number': track['number'],
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'uploader': artist
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}
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class BandcampAlbumTrackIE(BandcampIE):
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IE_NAME = "Bandcamp:albumtrack"
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"""Hack class to force album downloads to have prefixed track numbers by default"""
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def _real_extract(self, url):
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data = super()._real_extract(url)
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data['title'] = '{:02d} - {} - {}'.format(data['track_number'], data['artist'], data['track'])
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return data
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class BandcampAlbumIE(BandcampBaseIE):
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IE_NAME = 'Bandcamp:album'
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_VALID_URL = r'https?://(?:(?P<subdomain>[^.]+)\.)?bandcamp\.com(?:/album/(?P<album_id>[^/?#&]+))?'
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_TESTS = [{
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'url': 'http://blazo.bandcamp.com/album/jazz-format-mixtape-vol-1',
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'playlist': [
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{
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'md5': '39bc1eded3476e927c724321ddf116cf',
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'info_dict': {
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'id': '1353101989',
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'ext': 'mp3',
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'title': 'Intro',
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}
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},
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{
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'md5': '1a2c32e2691474643e912cc6cd4bffaa',
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'info_dict': {
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'id': '38097443',
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'ext': 'mp3',
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'title': 'Kero One - Keep It Alive (Blazo remix)',
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}
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},
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],
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'info_dict': {
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'title': 'Jazz Format Mixtape vol.1',
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'id': 'jazz-format-mixtape-vol-1',
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'uploader_id': 'blazo',
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},
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'params': {
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'playlistend': 2
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},
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'skip': 'Bandcamp imposes download limits.'
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}, {
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'url': 'http://nightbringer.bandcamp.com/album/hierophany-of-the-open-grave',
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'info_dict': {
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'title': 'Hierophany of the Open Grave',
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'uploader_id': 'nightbringer',
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'id': 'hierophany-of-the-open-grave',
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},
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'playlist_mincount': 9,
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}, {
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'url': 'http://dotscale.bandcamp.com',
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'info_dict': {
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'title': 'Loom',
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'id': 'dotscale',
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'uploader_id': 'dotscale',
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},
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'playlist_mincount': 7,
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}, {
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# with escaped quote in title
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'url': 'https://jstrecords.bandcamp.com/album/entropy-ep',
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'info_dict': {
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'title': '"Entropy" EP',
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'uploader_id': 'jstrecords',
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'id': 'entropy-ep',
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},
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'playlist_mincount': 3,
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}, {
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# not all tracks have songs
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'url': 'https://insulters.bandcamp.com/album/we-are-the-plague',
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'info_dict': {
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'id': 'we-are-the-plague',
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'title': 'WE ARE THE PLAGUE',
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'uploader_id': 'insulters',
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},
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'playlist_count': 2,
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}]
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@classmethod
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def suitable(cls, url):
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return (False
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if BandcampWeeklyIE.suitable(url) or BandcampIE.suitable(url)
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else super(BandcampAlbumIE, cls).suitable(url))
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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uploader_id = mobj.group('subdomain')
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album_id = mobj.group('album_id')
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playlist_id = album_id or uploader_id
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webpage = self._download_webpage(url, playlist_id)
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json_tralbum = self._extract_json_from_html_data_attribute(webpage, "tralbum", playlist_id)
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json_embed = self._extract_json_from_html_data_attribute(webpage, "embed", playlist_id)
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json_tracks = json_tralbum.get('trackinfo')
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if not json_tracks:
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raise ExtractorError('Could not extract album tracks')
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album_title = json_embed.get('album_title')
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# Only tracks with duration info have songs
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tracks = [self._parse_json_track(track) for track in json_tracks]
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entries = [
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self.url_result(
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compat_urlparse.urljoin(url, track['title_link']),
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ie=BandcampAlbumTrackIE.ie_key(),
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video_title=track['title'])
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for track in tracks
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if track.get('duration')]
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return {
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'_type': 'playlist',
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'uploader_id': uploader_id,
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'id': playlist_id,
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'title': album_title,
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'entries': entries
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}
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class BandcampWeeklyIE(InfoExtractor):
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IE_NAME = 'Bandcamp:weekly'
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_VALID_URL = r'https?://(?:www\.)?bandcamp\.com/?\?(?:.*?&)?show=(?P<id>\d+)'
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_TESTS = [{
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'url': 'https://bandcamp.com/?show=224',
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'md5': 'b00df799c733cf7e0c567ed187dea0fd',
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'info_dict': {
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'id': '224',
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'ext': 'opus',
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'title': 'BC Weekly April 4th 2017 - Magic Moments',
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'description': 'md5:5d48150916e8e02d030623a48512c874',
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'duration': 5829.77,
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'release_date': '20170404',
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'series': 'Bandcamp Weekly',
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'episode': 'Magic Moments',
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'episode_number': 208,
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'episode_id': '224',
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}
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}, {
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'url': 'https://bandcamp.com/?blah/blah@&show=228',
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'only_matching': True
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}]
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def _real_extract(self, url):
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video_id = self._match_id(url)
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webpage = self._download_webpage(url, video_id)
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blob = self._parse_json(
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self._search_regex(
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r'data-blob=(["\'])(?P<blob>{.+?})\1', webpage,
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'blob', group='blob'),
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video_id, transform_source=unescapeHTML)
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show = blob['bcw_show']
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# This is desired because any invalid show id redirects to `bandcamp.com`
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# which happens to expose the latest Bandcamp Weekly episode.
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show_id = int_or_none(show.get('show_id')) or int_or_none(video_id)
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formats = []
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for format_id, format_url in show['audio_stream'].items():
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if not url_or_none(format_url):
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continue
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for known_ext in KNOWN_EXTENSIONS:
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if known_ext in format_id:
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ext = known_ext
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break
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else:
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ext = None
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formats.append({
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'format_id': format_id,
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'url': format_url,
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'ext': ext,
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'vcodec': 'none',
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})
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self._sort_formats(formats)
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title = show.get('audio_title') or 'Bandcamp Weekly'
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subtitle = show.get('subtitle')
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if subtitle:
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title += ' - %s' % subtitle
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episode_number = None
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seq = blob.get('bcw_seq')
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if seq and isinstance(seq, list):
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try:
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episode_number = next(
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int_or_none(e.get('episode_number'))
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for e in seq
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if isinstance(e, dict) and int_or_none(e.get('id')) == show_id)
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except StopIteration:
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pass
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return {
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'id': video_id,
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'title': title,
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'description': show.get('desc') or show.get('short_desc'),
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'duration': float_or_none(show.get('audio_duration')),
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'is_live': False,
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'release_date': unified_strdate(show.get('published_date')),
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'series': 'Bandcamp Weekly',
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'episode': show.get('subtitle'),
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'episode_number': episode_number,
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'episode_id': compat_str(video_id),
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'formats': formats
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}
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