please write me a code in python as soon as possible.

a 1, Create a student class which have two variable : the student's name, python course grades, and 1) construstor method :create a new student and receive the information; 2)a printinfo method: output all student information(name and python course grades), and the grades are displayed (above 90 is A; 80-90 is B, 60-80 is C; below 60 is D). Then define a list to store 5 student instances, input student information in turn(by yourself ),use printinfo method and loop to print all student's information in the list