import requests from bs4 import BeautifulSoup url = "https://bj.zu.anjuke.com/fangyuan/p1/" headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3", } response = requests.get(url, headers=headers) soup = BeautifulSoup(response.text, "html.parser") house_list = soup.select(".zu-itemmod") for house in house_list: title = house.select(".house-title > a")[0].text.strip() price = house.select(".zu-side > p > strong")[0].text.strip() area = house.select(".details-item > span:nth-child(1)")[0].text.strip() print(title, price, area)这段代码报错:list index out of range
时间: 2023-06-09 15:02:10 浏览: 106
这个问题可能是因为 house_list 列表为空导致的。你可以检查一下网页源代码是否正确,以及是否选择出了正确的 class,以确保 house_list 中包含了需要的信息。你也可以在循环之前先判断一下 house_list 是否为空,如果不为空再执行循环。例如:
if house_list:
for house in house_list:
# do something
else:
print("No house found on this page.")
相关问题
优化这段代码import requests from bs4 import BeautifulSoup url = "https://www.gupang.com/202305/64619.html" response = requests.get(url) soup = BeautifulSoup(response.content, "html.parser") title = soup.find("h1", class_="title").text content = soup.find("div", class_="content").text print(title) print(content)
可以使用以下方法进行优化:
1. 添加异常处理,以防止请求失败或解析失败导致程序崩溃:
```python
import requests
from bs4 import BeautifulSoup
url = "https://www.gupang.com/202305/64619.html"
try:
response = requests.get(url)
response.raise_for_status() # 抛出异常,如果请求失败
except requests.exceptions.RequestException as e:
print(e)
sys.exit(1)
soup = BeautifulSoup(response.content, "html.parser")
try:
title = soup.find("h1", class_="title").text
content = soup.find("div", class_="content").text
except AttributeError as e:
print(e)
sys.exit(1)
print(title)
print(content)
```
2. 使用`with`语句来管理资源,以确保在使用完文件或网络连接后自动释放资源:
```python
import requests
from bs4 import BeautifulSoup
url = "https://www.gupang.com/202305/64619.html"
try:
with requests.get(url) as response:
response.raise_for_status()
soup = BeautifulSoup(response.content, "html.parser")
title = soup.find("h1", class_="title").text
content = soup.find("div", class_="content").text
except (requests.exceptions.RequestException, AttributeError) as e:
print(e)
sys.exit(1)
print(title)
print(content)
```
这种方法可以避免手动关闭连接或文件,而且代码更加简洁。
修改代码,使得li_list的编码格式是utf-8import requests from bs4 import BeautifulSoup url = 'https://www.icbc.com.cn/page/827855918799994880.html' response = requests.get(url=url) page_response = response.text soup = BeautifulSoup(page_response, 'html.parser',from_encoding='utf-8') li_list = soup.select('#mypagehtmlcontent p')
import requests
from bs4 import BeautifulSoup
url = 'https://www.icbc.com.cn/page/827855918799994880.html'
response = requests.get(url=url)
page_response = response.content.decode('utf-8')
soup = BeautifulSoup(page_response, 'html.parser')
li_list = soup.select('#mypagehtmlcontent p')
# 以下为测试代码,可以不用理会
for li in li_list:
print(li.text)