First python 2 medium code

#!/bin/python
import math
import os
import random
import re
import sys
# Complete the 'minimumNumberOfPages' function below.
# The function is expected to return an INTEGER.
# The function accepts following parameters:
# 1. INTEGER_ARRAY pages
# 2. INTEGER days

def minimumNumberOfPages(pages, days):
    def minimumNumberOfPages(pages, days):
    def can_finish_with_max_pages(max_pages):
        days_needed = 1
        current_pages = 0
        for page_count in pages:
            if current_pages + page_count > max_pages:
                days_needed += 1
                current_pages = 0
            current_pages += page_count
            if days_needed > days:
                return False
        return True

    left, right = max(pages), sum(pages)
    result = -1

    while left <= right:
        mid = (left + right) // 2
        if can_finish_with_max_pages(mid):
            result = mid
            right = mid - 1
        else:
            left = mid + 1

    return result

n = 4
pages = [2, 3, 4, 5]
days = 5
print(minimumNumberOfPages(pages, days))  # Expected Output: 4

n = 5
pages = [1, 2, 3, 3, 7]
days = 2
print(minimumNumberOfPages(pages, days))  # Expected Output: -1



if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')
    pages_count = int(raw_input().strip())
    pages = []
    for _ in xrange(pages_count):
        pages_item = int(raw_input().strip())
        pages.append(pages_item)
    days = int(raw_input().strip())
    result = minimumNumberOfPages(pages, days)
    fptr.write(str(result) + '\n')
    fptr.close()