Very simple Python script for querying the US Treasury savings bond calculator website in bulk.

1. Use Python 3+
2. brew install chromedriver to install headless Chrome driver
3. pip install selenium to install the Python bindings for the headless driver
4. Build a CSV file of bond information of the form FACE_VALUE,ISSUE_DATE where ISSUE_DATE is in MMYYYY format (e.g. 50,051992 for a $50 bond issued in May, 1992)
5. Run chromedriver to start the driver
6. python calculate.py $YOUR_CSV_FILE to submit all bond information to the website
7. Switch to the new Chrome process started by the script for information about each bond and totals