- 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')
+ global _WARNED
+ if ('_real_class' not in cls.__dict__
+ and name not in ALLOWED_CLASSMETHODS and not _WARNED):
+ _WARNED = True
+ write_string('WARNING: Falling back to normal extractor since lazy extractor '
+ f'{cls.__name__} does not have attribute {name}{bug_reports_message()}\n')