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Code Issues Releases Wiki Activity

lazy-extractors: Fix after commit 6e6b9f600f

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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.
This commit is contained in:
Jaime Marquínez Ferrándiz 2016-06-22 19:13:46 +02:00
parent 6ae938b295
commit 169d836feb
1 changed files with 41 additions and 6 deletions
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47
devscripts/make_lazy_extractors.py
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@ -14,15 +14,17 @@ if os.path.exists(lazy_extractors_filename):
os.remove(lazy_extractors_filename)
from youtube_dl.extractor import _ALL_CLASSES
from youtube_dl.extractor.common import InfoExtractor
from youtube_dl.extractor.common import InfoExtractor, SearchInfoExtractor
with open('devscripts/lazy_load_template.py', 'rt') as f:
module_template = f.read()
module_contents = [module_template + '\n' + getsource(InfoExtractor.suitable)]
module_contents = [
module_template + '\n' + getsource(InfoExtractor.suitable) + '\n',
'class LazyLoadSearchExtractor(LazyLoadExtractor):\n pass\n']
ie_template = '''
class {name}(LazyLoadExtractor):
class {name}({bases}):
_VALID_URL = {valid_url!r}
_module = '{module}'
'''
@ -34,10 +36,20 @@ make_valid_template = '''
'''
def get_base_name(base):
if base is InfoExtractor:
return 'LazyLoadExtractor'
elif base is SearchInfoExtractor:
return 'LazyLoadSearchExtractor'
else:
return base.__name__
def build_lazy_ie(ie, name):
valid_url = getattr(ie, '_VALID_URL', None)
s = ie_template.format(
name=name,
bases=', '.join(map(get_base_name, ie.__bases__)),
valid_url=valid_url,
module=ie.__module__)
if ie.suitable.__func__ is not InfoExtractor.suitable.__func__:
@ -47,12 +59,35 @@ def build_lazy_ie(ie, name):
s += make_valid_template.format(valid_url=ie._make_valid_url())
return s
# find the correct sorting and add the required base classes so that sublcasses
# can be correctly created
classes = _ALL_CLASSES[:-1]
ordered_cls = []
while classes:
for c in classes[:]:
bases = set(c.__bases__) - set((object, InfoExtractor, SearchInfoExtractor))
stop = False
for b in bases:
if b not in classes and b not in ordered_cls:
if b.__name__ == 'GenericIE':
exit()
classes.insert(0, b)
stop = True
if stop:
break
if all(b in ordered_cls for b in bases):
ordered_cls.append(c)
classes.remove(c)
break
ordered_cls.append(_ALL_CLASSES[-1])
names = []
for ie in list(sorted(_ALL_CLASSES[:-1], key=lambda cls: cls.ie_key())) + _ALL_CLASSES[-1:]:
name = ie.ie_key() + 'IE'
for ie in ordered_cls:
name = ie.__name__
src = build_lazy_ie(ie, name)
module_contents.append(src)
names.append(name)
if ie in _ALL_CLASSES:
names.append(name)
module_contents.append(
'_ALL_CLASSES = [{0}]'.format(', '.join(names)))