Python 3.x can'；t在python中从Beautifulsoup中scape一个值

我正在创建一个显示当前风的网站。当我转到（并在max:{wind}处单击inspect元素）时，我可以看到：

<span class="wgs_wind_max_value">12</span>

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使用与page相同的API获取json以填充这些值。请注意传递给API的querystring构造

import requests

headers = {'Referer' : 'https://www.windguru.cz/station/219'}    
r = requests.get('https://www.windguru.cz/int/iapi.php?q=station_data_current&id_station=219&date_format=Y-m-d%20H%3Ai%3As%20T&_mha=f4d18b6c', headers = headers).json()
print(r)
print(r['wind_max'])

from bs4 import BeautifulSoup
import requests

page = requests.get('https://www.windguru.cz/3323')
soup = BeautifulSoup(page.content, "lxml")
table = soup.find_all("span",{"class","wgs_wind_max_value"})
print(table)

import requests

headers = {'Referer' : 'https://www.windguru.cz/station/219'}    
r = requests.get('https://www.windguru.cz/int/iapi.php?q=station_data_current&id_station=219&date_format=Y-m-d%20H%3Ai%3As%20T&_mha=f4d18b6c', headers = headers).json()
print(r)
print(r['wind_max'])