could you please use python and add the screenshots of the codes

Question I (40 pts): Write a GUI application that keep track students' test grades and calculate the average marks. A sample of GUI is shown below. Numeric OLetter Class average: At the beginning, the user selects either "Numeric" or "Letter" grading. The user enters Test 1, Test 2 , and Test 3 scores of a student. The name of the student, the entered scores and the average of scores are inserted into the text box field as shown the figure. At each entry, the class average is also updated. If you select "Numeric", then grades (maximum grade is 100 points) are calculated as seen in the