我是 python 网络抓取的新手,我试图获取加拿大不同 winmar 位置的地址,并将结果放入 csv 文件中。到目前为止,我发现区分不同位置站点的唯一方法是通过地址末尾的代码(数字)。问题是结果不会随着程序运行而改变,而是在打印时产生第一个位置 (305) 的结果,并将结果写入 csv 文件。感谢您的时间和考虑!
这是我的代码:
import csv
import requests
from bs4 import BeautifulSoup
x = 0
numbers = ['305', '405', '306', '307', '308', '309', '4273']
f = csv.writer(open('Winmar_locations.csv', 'w'))
f.writerow(['City:', 'Address:'])
for links in numbers:
for x in range(0, 6):
url = 'https://www.winmar.ca/find-a-location/' + str(numbers[x])
r = requests.get(url)
soup = BeautifulSoup(r.content, "html.parser")
location_name = soup.find("div", attrs={"class": "title_block"})
location_name_items = location_name.find_all('h2')
location_list = soup.find(class_='quick_info')
location_list_items = location_list.find_all('p')
for name in location_name_items:
names = name.text
names = names.replace('Location | ', '')
for location in location_list_items:
locations = location.text.strip()
locations = locations.replace('24 Hour Emergency | (902) 679-1116','')
print(names, locations)
x = x+1
f.writerow([names, locations])
最佳答案
你的代码有一些错误,还有一个关于你正在抓取的网站的错误
首先像这样访问 url
https://www.winmar.ca/find-a-location/308
不会正确更改位置,它需要像这样https://www.winmar.ca/find-a-location/#308
在数字前加上 hashbang。该网站有相同类的重复 html,这意味着您几乎一直加载所有位置,而他们只是从他们的 js 代码中选择要显示的位置 - 当然是不好的做法 -,这使得您的匹配器总是得到相同的位置,这就解释了为什么您总是重复相同的位置。
最后,你有很多不必要的循环,你只需要遍历数字数组就可以了。
这是你的代码的修改版本
import csv
import requests
from bs4 import BeautifulSoup
x = 0
numbers = ['305', '405', '306', '307', '308', '309', '4273']
names = []
locations = []
for x in range(0, 6):
url = 'https://www.winmar.ca/find-a-location/#' + str(numbers[x])
print(f"pinging url {url}")
r = requests.get(url)
soup = BeautifulSoup(r.content, "html.parser")
scope = soup.find(attrs={"data-id": str(numbers[x])})
location_name = scope.find("div", attrs={"class": "title_block"})
location_name_items = location_name.find_all('h2')
location_list = scope.find(class_='quick_info')
location_list_items = location_list.find_all('p')
name = location_name.find_all("h2")[0].text
print(name)
names.append(name)
for location in location_list_items:
loc = location.text.strip()
if '24 Hour Emergency' in loc:
continue
print(loc)
locations.append(loc)
x = x+1
注意我所做的范围界定
scope = soup.find(attrs={"data-id": str(numbers[x])})
这使您的代码不受它们在 html 中加载了多少位置的影响,您只需将范围定位到您想要的位置。
这导致:
pinging url https://www.winmar.ca/find-a-location/#305
Location | Annapolis
70 Donald E Hiltz Connector Road
Kentville, NS
B4N 3V7
pinging url https://www.winmar.ca/find-a-location/#405
Location | Bridgewater
15585 Highway # 3
Hebbville, NS
B4V 6X7
pinging url https://www.winmar.ca/find-a-location/#306
Location | Halifax
9 Isnor Dr
Dartmouth, NS
B3B 1M1
pinging url https://www.winmar.ca/find-a-location/#307
Location | New Glasgow
5074 Hwy. #4, RR #1
Westville, NS
B0K 2A0
pinging url https://www.winmar.ca/find-a-location/#308
Location | Port Hawkesbury
8 Industrial Park Rd
Lennox Passage, NS
B0E 1V0
pinging url https://www.winmar.ca/find-a-location/#309
Location | Sydney
358 Keltic Drive
Sydney River, NS
B1R 1V7
关于python - 网页抓取多个相似页面,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/61165627/