python - 尝试抓取 Forecast.weather.gov 并遇到问题，特别是从 WriteText 标签获取数据时遇到问题

Question

import re
from bs4 import BeautifulSoup
example = """writeText('<b>Sunday, January 26 at  1pm</b><br>Temperature: 41 &deg;F&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Dewpoint: 34 &deg;F&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wind Chill: 36 &deg;F&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Surface Wind: W 7mph<br>Sky Cover (%): 63%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Precipitation Potential (%): 5%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Relative Humidity (%): 76%<br>Rain: <10%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Thunder: <10%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Snow: <10%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Freezing Rain: <10%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sleet: <10%')

writeText('<b>Sunday, January 26 at  2pm</b><br>Temperature: 41 &deg;F&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Dewpoint: 34 &deg;F&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wind Chill: 36 &deg;F&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Surface Wind: W 7mph<br>Sky Cover (%): 62%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Precipitation Potential (%): 5%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Relative Humidity (%): 76%<br>Rain: <10%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Thunder: <10%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Snow: <10%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Freezing Rain: <10%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sleet: <10%')"""

soup = BeautifulSoup(example, "html.parser")
date = re.findall(r'<b>\s*(.*?)\s*</b>', str(soup))
print (date)
temp = re.findall(r'<br>\s*(.*?)\s*<&nbsp;', str(soup))
print(temp)

我想提取日期、温度、露点、风寒以及雨夹雪之前的所有属性。只能提取日期!

Answer 1

如果一切看起来都像您的示例，那么您不需要 beautifulsoup，也绝对不需要正则表达式。普通的旧字符串操作就可以了:

ex = example.replace(' ',' ').replace('°','°')
ex2 = ex.split('     ')
for i in ex2:
    if '<br>' in i:
        print(i.split('<br>')[1])
    else:
        print(i)

显然，你可以多玩玩它。

输出:

Temperature: 41 °F
Dewpoint: 34 °F
Wind Chill: 36 °F
Sky Cover (%): 63%
Precipitation Potential (%): 5%
Rain: <10%
Thunder: <10%
Snow: <10%
Freezing Rain: <10%
Temperature: 41 °F
Dewpoint: 34 °F
Wind Chill: 36 °F
Sky Cover (%): 62%
Precipitation Potential (%): 5%
Rain: <10%
Thunder: <10%
Snow: <10%
Freezing Rain: <10%
Sleet: <10%')