在爬取网页数据数据解析完成，一共返回九个列表，然后发现解析出的数据前三个的格式都有问题，在返回的列表中有\r\n和大量空格，请问怎么去掉这个？

Question

import requests
from lxml import etree
if __name__ == '__main__':
    url = 'http://www.tianqihoubao.com/aqi/'
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.204 Safari/537.36'
    }
    page_text = requests.get(url=url, headers=headers).text
    tree = etree.HTML(page_text)
    city_list = tree.xpath('//div[@class="citychk"]/dl/dd')
    city_list = city_list[1:]
    for dd in city_list:
        #  获取城市名称和href和url
        city_name = dd.xpath('./a/text()')[0]
        city_name = city_name.encode('iso-8859-1').decode('gbk')
        # print(city_name)
        city_href = dd.xpath('./a/@href')[0]
        city_url = 'http://www.tianqihoubao.com' + city_href
        #  获取url响应数据
        city_AQI = requests.get(url=city_url, headers=headers).text
        city_tree = etree.HTML(city_AQI)
        city_aqi_list = city_tree.xpath('//div[@class="box p"]//li')[4:16]
        # print(city_aqi_list)
        for li in city_aqi_list:
            #  aqi每个月的url获取
            li_name = li.xpath('./a/@title')[0]
            li_href = li.xpath('./a/@href')[0]
            li_url = 'http://www.tianqihoubao.com' + li_href
            #  获取每个月aqi详细数据
            li_page = requests.get(url=li_url, headers=headers).text
            li_tree = etree.HTML(li_page)
            li_list = li_tree.xpath('//div[@class="api_month_list"]//tr')
            title = li_list[0]
            # print(li_list)
            path = city_name + li_name + '.txt'
            with open(path, 'w', encoding='utf-8') as fp:
                for data in li_list[1:]:
                    data_name = data.xpath('./td[1]/text()')
                    data_name = list(filter(None,data_name))
                    print(data_name)
                    grade = data.xpath('./td[2]/text()')
                    grade = list(filter(None, grade))
                    print(grade)
                    AQI = data.xpath('./td[3]/text()')
                    AQI = list(filter(None, AQI))
                    print(AQI)
                    PM25 = data.xpath('./td[5]/text()')
                    print(PM25)
                    PM10 = data.xpath('./td[6]/text()')
                    print(PM10)
                    So2 = data.xpath('./td[7]/text()')
                    print(So2)
                    No2 = data.xpath('./td[8]/text()')
                    print(No2)
                    Co = data.xpath('./td[9]/text()')
                    print(Co)
                    O3 = data.xpath('./td[10]/text()')
                    print(O3)
-

Answer 1

strip()