菜鸟 0.0 使用 Masonite 框架测试网上写的豆瓣爬虫

这是代码

"""A InfoController Module."""
# encoding=utf-8
import requests
from bs4 import BeautifulSoup
from masonite.request import Request
from masonite.controllers import Controller

class InfoController(Controller):
    """InfoController Controller Class."""

    def download_page(self, url):
        """获取url地址页面内容"""
        headers = {
            'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36'
        }
        data = requests.get(url, headers=headers).content
        return data

    def get_li(self, doc):
        # 生成解析对象
        soup = BeautifulSoup(doc, 'html.parser')
        htmls = open('test.html', 'x', -1, 'utf8')
        htmls.write(soup.get_text())
        htmls.close()

    def testPython(self):
        # 定义访问网址
        url = 'http://movie.douban.com/top250/'
        while url:
            # 请求网址，返回内容
            doc = self.download_page(url)
            self.get_li(doc)
        return 123

问题

目前是使用这个 testPython 方法之后可以生成html，但是这个方法执行完页面上之后会报错，菜鸟表示不清楚什么情况，还有这应该算是程序异常了吧

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