無法使用 python 從網站打印文本

Question

因為它只給我一個關於品牌的錯誤，我應該如何解決它

回溯（最近一次調用）：文件“d:/python/davago.py”，第 15 行，在brand= property.find('h3', class_ = 'productitem--vendor').text.strip() AttributeError 中: 'NoneType' 對象沒有屬性 'text'

import requests
from bs4 import BeautifulSoup
from bs4 import *
import pandas as pd
import time

url = 'https://dvago.pk/collections/cardio-vascular-system?page=1&grid_list=grid-view'
r = requests.get(url)
soup = BeautifulSoup(r.content, 'html.parser')
content = soup.find_all('div', class_ = 'productitem')
#print(content)
for property in content:
    names= property.find('div', class_ = 'productitem--info')
    name= names.find('h2', class_ = 'productitem--title').text.strip()
    brand= property.find('h3', class_ = 'productitem--vendor').text.strip()
    

    print(name,brand)

Answer 1

如果您看到最后三個內容沒有供應商名稱，那么您可以使用try和except塊來處理exception並打印適當的語句

import requests
from bs4 import BeautifulSoup
from bs4 import *
import pandas as pd
import time

url = 'https://dvago.pk/collections/cardio-vascular-system?page=1&grid_list=grid-view'
r = requests.get(url)
soup = BeautifulSoup(r.content, 'html.parser')
content = soup.find_all('div', class_ = 'productitem')
#print(content)
for property in content:
    names= property.find('div', class_ = 'productitem--info')
    try:
        name= names.find('h2', class_ = 'productitem--title').text.strip()
    except AttributeError:
        name="Company name not available"
    try:
        brand= property.find('h3', class_ = 'productitem--vendor').text.strip()
    except AttributeError:
        brand="Brand name not available"
    

    print("Company Name:",name)
    print("Brand Name:",brand)

Answer 2

您應該先找到“productgrid--items”，然后再查看其中的每個項目。 'productitem' 類可能還有其他用途，但其中沒有 h3，這就是您收到異常的原因：

import requests
from bs4 import BeautifulSoup
from bs4 import *
# import pandas as pd
# import time

url = 'https://dvago.pk/collections/cardio-vascular-system?page=1&grid_list=grid-view'
r = requests.get(url)
soup = BeautifulSoup(r.content, 'html.parser')
aaa = soup.find('div', class_='productgrid--items') ## <------
content = aaa.find_all('div', class_='productitem') ## <------
# print(content)
for property in content:
    names = property.find('div', class_='productitem--info')
    name = names.find('h2', class_='productitem--title').text.strip()
    brand = property.find('h3', class_='productitem--vendor').text.strip()

    print(name, brand)