is there a similar function as Excel TREND function in python?

I have a Excel function "TREND(value1:value2, date1:date2, date3,TRUE)" which works well in excel, now I want this in python code. how to proceed with this.

I need the value for the date3 point. my y points are value1 and value2 x point are date1 and date2 for new x point date3 what is the value?

thanks