问为什么我的Python程序在运行第一个循环后关闭？

EN

import requests
import csv
import time
import json
from bs4 import BeautifulSoup, Tag

file = open('parcelids.csv','w')
writer = csv.writer(file)
writer.writerow(['parcelId'])

for x in range(1,10):
    time.sleep(1) # slowing it down
    url = 'http://apixyz/Parcel.aspx?Pid=' + str(x)
    source = requests.get(url)
    response = source.content
    soup = BeautifulSoup(response, 'html.parser')
    parcelId = soup.find("span", id="MainContent_lblMblu").text.strip()
    writer.writerow([parcelId])

out = open('mapdata.csv','w')   
with open('parcelIds.csv', 'r') as in1:
    reader = csv.reader(in1)
    writer = csv.writer(out)
    next(reader, None) # skip header
    for row in reader:
        row = ''.join(row[0].split())[:-2].upper().replace('/','-') #formatting
        url="https://api.io/api/properties/"
        url1=url+row
        time.sleep(1) # slowing it down
        response = requests.get(url1)       
        resp_json_payload = response.json()
        address = resp_json_payload['property']['address']
        writer.writerow([address])