BeautifulSoup 找不到我的 table 因为一些奇怪的字符串

BeautifulSoup can't find my table because of some weird string

您好,我一直在尝试使用 BeautifulSoup 从 wunderground 获取 table,但它不起作用。

我认为它可能是 table header 旁边的 starnge 字符串,但我无法修复它。

这是我的代码:

from bs4 import BeautifulSoup
import requests

url='https://www.wunderground.com/history/daily/LEMD/date/2020-10-21'

html_content = requests.get(url).text

soup = BeautifulSoup(html_content, "html.parser")

table = soup.find("table", {"class": "mat-table cdk-table mat-sort ng-star-inserted"})

table_data = table.tbody.find_all("tr")

和错误:

Traceback (most recent call last):
  File "weather_poc.py", line 12, in <module>
    table_data = table.tbody.find_all("tr")
AttributeError: 'NoneType' object has no attribute 'tbody'

您看到的数据是通过 JavaScript 从外部 URL 加载的。您可以使用 requests/json 模块加载它。例如:

import json
import requests
import pandas as pd


url = 'https://api.weather.com/v1/location/LEMD:9:ES/observations/historical.json?apiKey=6532d6454b8aa370768e63d6ba5a832e&units=e&startDate=20201021&endDate=20201021'
data = requests.get(url).json()

# uncomment this line to print all data:
# print(json.dumps(data, indent=4))

df = pd.json_normalize(data['observations'])
df.to_csv('data.csv', index=False)

创建 data.csv(来自 LibreOffice 的屏幕截图):