Program: finding the percentage / hackerrank - python-3.x

Question

I am using below python code:
n = int(input('enter the number:'))
student_marks = {}
for i in range(n):
name, *line = input().split()
scores = list(map(float, line))
student_marks[name] = scores
query_name = input('enter the name:')
list_1 = list(student_marks[query_name])
no = len(l)
print(no)
s = sum(l)
print(s)
ss = s/no
print(ss)
But, i am getting an error while input the query_name during the run of code.
source: https://www.hackerrank.com/challenges/finding-the-percentage/problem

Answer 1

you can try to do
n = int(input('enter the number:'))
student_marks = {}
for i in range(n):
name, *line = input("enter name and scroe (spared by space): ").split()
scores = list(map(float, line))
student_marks[name] = scores
query_name = input('enter the name:')
list_1 = list(student_marks[query_name])
no = len(list_1)
print("the numer of scores {}".format(no))
s = sum(list_1)
print("The sum of all scores {}".format(s))
ss = s/no
print("The average score {}".format(ss))

Answer 2

if __name__ == '__main__':
n = int(input())
student_marks = {}
count = 0
for _ in range(n):
name, *line = input().split()
scores = list(map(float, line))
student_marks[name] = scores
query_name = input()
for i in student_marks[query_name]:
count += i
average = count / len(student_marks[query_name])
print("%.2f" %average)

Answer 3

You can try this solution:
--------------------------
from decimal import Decimal
# Main function (like Java main() method)
if __name__ == '__main__':
# Taking number of times input will be taken from console and converting it into int type
n = int(input())
# creating an empty dictionary
student_marks = {}
# Iterate from: 0 to n-1 times
for _ in range(n):
# Taking the first argument as name and all other numbers inside line var
name, *line = input().split()
# Converting the numbers contained in line variable to a map then, converting into list
scores = list(map(float, line))
# Inserting into dictionary as key - value pair
student_marks[name] = scores
# Taking the student name from console and store into query_name
query_name = input()
# Fetch student marks using student name
query_scores = student_marks[query_name]
# Sum all the marks
total_scores = sum(query_scores)
# Find average of the marks
avg = Decimal(total_scores/3)
# print the average upto two decimal point
print(round(avg, 2))