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python-3.x - soup.find_all 返回空列表

问题描述

我对python很陌生，我正在尝试搜索指定的邮政编码并打印相应的城市，但是我一直无法这样做。

from bs4 import BeautifulSoup
import requests
import html.parser

# I am using Chrome as default browser

url = ("http://google.co.uk/search?=sk71nd")
response = requests.get(url)
soup = BeautifulSoup(response.content, 'html.parser')

'''我认为下面的课程会返回以下城市：城市：大曼彻斯特、布拉姆霍尔、斯托克波特大都会区，但我只得到一个空列表'''

print(soup.find_all("div", {'class': "zloOqf PZPZlf kno-fb-ctx"}))

是否可以搜索提供的邮政编码并打印结果城市？非常感谢

标签： python-3.xweb-scrapingbeautifulsoup

解决方案

尝试这个，

from bs4 import BeautifulSoup
import requests
import html.parser
import re

# I am using Chrome as default browser
data = []
data2 = []
url = ("https://en.wikipedia.org/wiki/List_of_postcode_districts_in_the_United_Kingdom")
response = requests.get(url)
soup = BeautifulSoup(response.content, 'html.parser')
#print(soup.prettify())
table = soup.find("table", {"class": "toc"})
for row in table.findAll("tr"):
    cols = row.find_all('td')
    cols = [ele.text.strip() for ele in cols]
    data.append([ele for ele in cols if ele])

print(data[1])

table = soup.find("table", {"class": "wikitable sortable"})
for row in table.findAll("tr"):
    cols = row.find_all('td')
    cols = [ele.text.strip() for ele in cols]
    data2.append([ele for ele in cols if ele])

print(data2)

data1 - 存储邮政编码 data2 - [邮政编码区、邮政编码区、邮政镇、原邮政县]

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