Being an experienced data scientist and Python programmer for over 14 years, I am confident in my abilities to build the script you need for extracting real-time EURUSD data from OANDA charts. I can provide a script that will display the OHLC, volume and 20-hour moving average volume data of the current and previous candles on the screen with precise accuracy. My proficiency in Python, familiarity with OANDA charts and forex data extraction deeply aligns with your project requirements.
Moreover, not only do I offer deep knowledge of data manipulation and analysis, but I also have extensive understanding of Live Data Analysis, which makes me fully equipped for your project. My mastery expands to include popular python libraries like Pandas, NumPy, OpenCV and machine learning frameworks like scikit-learn, TensorFlow and PyTorch all aiding in efficient management and interpretation of data.
Lastly, I understand that saving time is essential for you. Thus, I assure timely completion of the project without compromising on quality or our excellent line of communication through which you are always welcome to contact me with any query or request at any time of day. Given this significant fusion of skills and expertise combined with my enthusiasm for new projects, choosing me would be a decision you won't regret!