mirror of
https://github.com/l1ving/youtube-dl
synced 2024-11-25 20:22:57 +08:00
169d836feb
The problem was in the following code:
class ArteTVPlus7IE(ArteTVBaseIE):
...
@classmethod
def suitable(cls, url):
return False if ArteTVPlaylistIE.suitable(url) else super(ArteTVPlus7IE, cls).suitable(url)
And its sublcasses like ArteTVCinemaIE.
Since in the lazy_extractors.py file ArteTVCinemaIE was not a subclass of ArteTVPlus7IE, super(ArteTVPlus7IE, cls) failed.
To fix it we have to make it a subclass. Since the order of _ALL_CLASSES is arbitrary we must sort them so that the base classes are defined first. We also must add base classes like YoutubeBaseInfoExtractor.
99 lines
2.8 KiB
Python
99 lines
2.8 KiB
Python
from __future__ import unicode_literals, print_function
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from inspect import getsource
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import os
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from os.path import dirname as dirn
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import sys
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print('WARNING: Lazy loading extractors is an experimental feature that may not always work', file=sys.stderr)
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sys.path.insert(0, dirn(dirn((os.path.abspath(__file__)))))
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lazy_extractors_filename = sys.argv[1]
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if os.path.exists(lazy_extractors_filename):
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os.remove(lazy_extractors_filename)
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from youtube_dl.extractor import _ALL_CLASSES
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from youtube_dl.extractor.common import InfoExtractor, SearchInfoExtractor
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with open('devscripts/lazy_load_template.py', 'rt') as f:
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module_template = f.read()
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module_contents = [
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module_template + '\n' + getsource(InfoExtractor.suitable) + '\n',
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'class LazyLoadSearchExtractor(LazyLoadExtractor):\n pass\n']
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ie_template = '''
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class {name}({bases}):
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_VALID_URL = {valid_url!r}
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_module = '{module}'
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'''
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make_valid_template = '''
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@classmethod
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def _make_valid_url(cls):
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return {valid_url!r}
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'''
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def get_base_name(base):
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if base is InfoExtractor:
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return 'LazyLoadExtractor'
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elif base is SearchInfoExtractor:
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return 'LazyLoadSearchExtractor'
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else:
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return base.__name__
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def build_lazy_ie(ie, name):
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valid_url = getattr(ie, '_VALID_URL', None)
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s = ie_template.format(
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name=name,
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bases=', '.join(map(get_base_name, ie.__bases__)),
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valid_url=valid_url,
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module=ie.__module__)
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if ie.suitable.__func__ is not InfoExtractor.suitable.__func__:
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s += '\n' + getsource(ie.suitable)
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if hasattr(ie, '_make_valid_url'):
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# search extractors
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s += make_valid_template.format(valid_url=ie._make_valid_url())
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return s
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# find the correct sorting and add the required base classes so that sublcasses
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# can be correctly created
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classes = _ALL_CLASSES[:-1]
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ordered_cls = []
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while classes:
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for c in classes[:]:
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bases = set(c.__bases__) - set((object, InfoExtractor, SearchInfoExtractor))
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stop = False
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for b in bases:
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if b not in classes and b not in ordered_cls:
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if b.__name__ == 'GenericIE':
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exit()
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classes.insert(0, b)
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stop = True
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if stop:
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break
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if all(b in ordered_cls for b in bases):
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ordered_cls.append(c)
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classes.remove(c)
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break
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ordered_cls.append(_ALL_CLASSES[-1])
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names = []
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for ie in ordered_cls:
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name = ie.__name__
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src = build_lazy_ie(ie, name)
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module_contents.append(src)
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if ie in _ALL_CLASSES:
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names.append(name)
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module_contents.append(
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'_ALL_CLASSES = [{0}]'.format(', '.join(names)))
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module_src = '\n'.join(module_contents) + '\n'
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with open(lazy_extractors_filename, 'wt') as f:
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f.write(module_src)
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