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[extractor] Framework for embed detection (#4307)

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This commit is contained in:
pukkandan
2022-08-01 06:52:03 +05:30
parent 47304e07dc
commit 8f97a15d1c
8 changed files with 149 additions and 77 deletions
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6
devscripts/lazy_load_template.py
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@@ -9,11 +9,13 @@ from ..utils import (
write_string,
)
# These bloat the lazy_extractors, so allow them to passthrough silently
ALLOWED_CLASSMETHODS = {'get_testcases', 'extract_from_webpage'}
class LazyLoadMetaClass(type):
def __getattr__(cls, name):
# "_TESTS" bloat the lazy_extractors
if '_real_class' not in cls.__dict__ and name != 'get_testcases':
if '_real_class' not in cls.__dict__ and name not in ALLOWED_CLASSMETHODS:
write_string(
'WARNING: Falling back to normal extractor since lazy extractor '
f'{cls.__name__} does not have attribute {name}{bug_reports_message()}\n')

7
devscripts/make_lazy_extractors.py
View File

@@ -11,7 +11,7 @@ import optparse
from inspect import getsource
NO_ATTR = object()
STATIC_CLASS_PROPERTIES = ['IE_NAME', 'IE_DESC', 'SEARCH_KEY', '_WORKING', '_NETRC_MACHINE', 'age_limit']
STATIC_CLASS_PROPERTIES = ['IE_NAME', 'IE_DESC', 'SEARCH_KEY', '_VALID_URL', '_WORKING', '_NETRC_MACHINE', 'age_limit']
CLASS_METHODS = [
'ie_key', 'working', 'description', 'suitable', '_match_valid_url', '_match_id', 'get_temp_id', 'is_suitable'
]
@@ -116,11 +116,6 @@ def build_lazy_ie(ie, name, attr_base):
}.get(base.__name__, base.__name__) for base in ie.__bases__)
s = IE_TEMPLATE.format(name=name, module=ie.__module__, bases=bases)
valid_url = getattr(ie, '_VALID_URL', None)
if not valid_url and hasattr(ie, '_make_valid_url'):
valid_url = ie._make_valid_url()
if valid_url:
s += f' _VALID_URL = {valid_url!r}\n'
return s + '\n'.join(extra_ie_code(ie, attr_base))