How to Calculate number of graphs exists in page and how to take tooltips of each graph using python selenium? [duplicate]

I have multiple drop-downs in my page and multiple radio buttons available in my web page. Based on the selection of drop-downs and radio buttons the data will change. I need to automate this process and i need to take the tool tips of each graph data.

Kindly help me if any one have idea?

Thanks In Advance!