10 years of historical data for the Fear and Greed Index, Put Call Ratio, AAII Sentiment Survey, and the VIX.
https://www.youtube.com/watch?v=_4z8WR6rFBI
https://youtube.com/parttimelarry
In the first step you need to install libmagic with
brew install libmagic
in the secound step you should install the requirements with
pip3 install -r requirements.txt
newer versions of the backtrader framework currently have issues as you can read here https://community.backtrader.com/topic/981/importerror-cannot-import-name-min_per_hour-when-trying-to-plot/9