Real-Time NYSE Option Chain Fetcher

I need a Python script that fetches the live option chain for NYSE in real-time.

Requirements:
- Fetch option chain data for all available options on NYSE.
- Update and deliver data in real-time.
- Use Python as the programming language.

Ideal Skills:
- Proficiency in Python
- Experience with real-time data fetching and handling
- Familiarity with NYSE and options trading

Please provide relevant work experience and examples.