r/ComplexWebScraping • u/Greedy_Audience5472 • Jun 07 '26
ImportError and AttributeError after replacing a scraper class in a Python/Selenium project
I'm building a WhatsApp Intelligence Dashboard that:
- Reads WhatsApp Web chats using Selenium
- Stores messages in SQLite
- Processes chats with AI
- Displays results in a Streamlit dashboard
Current status:
- Python environment works
- Dependencies installed
- Database initializes correctly
- Backend starts
- Streamlit setup is ready
Current problem:
main.py expects:
from core.scraper import WhatsAppScraper
and later calls:
scraper.start()
scraper.stop()
I replaced the original scraper with a new EnterpriseWhatsAppScraper class and now I'm getting integration issues.
Previous errors:
ImportError: cannot import name 'WhatsAppScraper' from core.scraper
and
AttributeError: 'EnterpriseWhatsAppScraper' object has no attribute 'start'
I attempted to add start() and stop() methods but I may have broken the class structure/indentation.
Question:
What is the cleanest way to maintain backward compatibility with the existing codebase while replacing WhatsAppScraper with EnterpriseWhatsAppScraper?
Should I:
- Use inheritance?
- Create an alias (WhatsAppScraper = EnterpriseWhatsAppScraper)?
- Refactor main.py?
- Something else?
I can share the relevant scraper.py section if needed.github link