调试后，关于IndexError: list index out of range的问题

来源：13-9 数据精炼

Pre_Y

2019-02-11

这是我根据老师讲的和熊猫TV现在的HTML写的代码：
`import re
from urllib import request

class Spider():
url = 'https://www.panda.tv/cate/lol?pdt=1.24.s1.3.unl7kqgm1k’
root_pattern = '

([\s\S]?)

'
name_pattern = '([\s\S.]?)'
number_pattern = ‘([\s\S.]*?)’

# 1
def __fetch_content(self):
    r = request.urlopen(Spider.url)
    htmls = r.read()
    htmls = str(htmls, encoding='utf-8')
    return htmls

# 2
def __analysis(self, htmls):
    root_html = re.findall(Spider.root_pattern, htmls)
    anchors = []
    for html in root_html:
        name = re.findall(Spider.name_pattern, html)
        number = re.findall(Spider.number_pattern, html)
        anchor = {'name':name, 'number':number}
        anchors.append(anchor)
    return anchors

# 3
def __refine(self, anchors):
    l = lambda anchor: {
        'name': anchor['name'][0].strip(),
        'number': anchor['number'][0]
    }
    return map(l, anchors)

def go(self):
    htmls = self.__fetch_content()
    anchors = self.__analysis(htmls)
    result_map = self.__refine(anchors)
    result = list(result_map)
    print(result)

spider = Spider()
spider.go()`

下面贴的是上段代码运行的结果：图片描述