Hacker rank Find the Median

#!/bin/python3
 
import math
import os
import random
import re
import sys
 
#
# Complete the 'findMedian' function below.
#
# The function is expected to return an INTEGER.
# The function accepts INTEGER_ARRAY arr as parameter.
#
 
def findMedian(arr):
    # Write your code here
    arr=sorted(arr)
    cnt=len(arr)
    return arr[cnt//2]
if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')
 
    n = int(input().strip())
 
    arr = list(map(int, input().rstrip().split()))
 
    result = findMedian(arr)
 
    fptr.write(str(result) + '\n')
 
    fptr.close()