Finding the percentage by python ( HackerRank)

 The provided code stub will read in a dictionary containing key/value pairs of name:[marks] for a list of students. Print the average of the marks array for the student name provided, showing 2 places after the decimal.

if __name__ == '__main__': n = int(input()) student_marks = {} for i in range(n): name, *line = input().split() scores = list(map(float, line)) student_marks[name] = scores query_name = input() lis = student_marks.get(query_name) avg = (sum(lis)/3) format_float = "{:.2f}".format(avg) print(format_float)