Small helper to fetch Prosperous Universe Market data that pmrv is getting from FIO every 30 minutes and putting it into CSV files with data aggregated on a daily level.

This data can be combined and used in PRUNplanner to initially import historic market data for its Market Exploration Charts.

Run the Python script

1. Install dependencies from requirements.txt
2. Run python ponder.py to fetch data, create price CSVs and combine them
3. Or: run python ponder.py --combine to only combine existing files again