find average of list python

                                    #!/bin/python3

import math
import os
import random
import re
import sys


# write your code here
def avg(*n):
    sumOfNumber = 0
    for t in n:
        sumOfNumber = sumOfNumber + t
    avge = sumOfNumber / len(n)
    return avge
if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')
    
    nums = list(map(int, input().split()))
    res = avg(*nums)
    
    fptr.write('%.2f' % res + '\n')

    fptr.close()

                                    
#python3

def average(list): 
    result = sum(list) / len(list) 
    return result 

list = [68,68,71,71,71,75,71,78,91,98,75,71,84]
print(average(list))

                                    list = [15, 18, 2, 36, 12, 78, 5, 6, 9]

# for older versions of python
average_method_one = sum(list) / len(list) 
# for python 2 convert len to a float to get float division
average_method_two = sum(list) / float(len(list))

# round answers using round() or ceil()
print(average_method_one)
print(average_method_two)

                                    # A function that finds an average of a list of numbers

numbers = [1,2,3,4,5,6,7,889,102390143]

def find_average(number_list):

    total = 0

    for number in number_list:
        total += number
    
    average = total / len(number_list)

    print("Your average is:", average)

find_average(numbers)