我已經有一個look對其他問題進行了彙總,但我找不到任何東西。用BeautifulSoup無法計數空標籤?
我的HTML看起來像
<div class="rating-input">
<i data-value="1" class="rating-active-star"></i>
<i data-value="2" class="rating-active-star"></i>
<i data-value="3" class="rating-active-star"></i>
<i data-value="4" class="rating-active-star"></i>
<i data-value="5" class="rating-inactive-star"></i>
</div>
而且我行多數民衆贊成失敗是這樣的:
details = [{"name": film.select('h2')[0].text.split('\n')[0],
"rating":len(film.select('div i.rating-inactive-star'))}
for film in detail_row]
因爲它帶回了這一點:
[{'name': 'The LEGO Batman Movie', 'rating': 0},
{'name': 'Sing', 'rating': 0},
{'name': 'John Wick: Chapter 2', 'rating': 0},
{'name': 'Fifty Shades Darker', 'rating': 0},
{'name': 'The Great Wall', 'rating': 0},
{'name': 'Hidden Figures', 'rating': 0},
{'name': 'La La Land', 'rating': 0},
{'name': 'The Founder', 'rating': 0},
{'name': 'Hacksaw Ridge', 'rating': 0},
{'name': 'T2 Trainspotting', 'rating': 0},
{'name': 'Split', 'rating': 0},
{'name': 'Patriots Day', 'rating': 0}
]
,所有的收視率都爲零。我期望的是i
元素的數量與類rating-active-star
(例如4,爲上述html)。
凡爲我的等級選擇改變從'div i.rating-active-star'
到'div i'
所有'rating': 0
成爲'rating': 5
這裏是我的整個腳本(或多或少的MVP):
import requests
import bs4
data = "si=1010841&sort=cin&max=0&bd=2017-02-23&css=cat-&mod=cinemapage_movie_list&attrs=2D%2C3D%2CIMAX%2CViP%2CVIP%2CDBOX%2C4DX%2CM4J%2CSS"
data_list = data.split('&')
info = {item[0]:item[1] for item in [elem.split('=') for elem in data_list]}
response = requests.post('https://www.cineworld.co.uk/pgm-list-byfeat',info)
soup = bs4.BeautifulSoup(response.text, "html.parser")
detail_row = soup.select('div[id^=film_] div.row div.col-sm-10')
details = [{"name": film.select('h2')[0].text.split('\n')[0],
"rating":len(film.select('div i.rating-active-star'))}
for film in detail_row]
爲什麼一個列表的長度空標籤的長度與非空標籤的長度有什麼不同?我該如何解決這個問題?
我很困惑。評級標籤中沒有值。所以'len(film.select('div i.rating-active-star')))'是0並且len(film.select('div i')))是5.你期望看到什麼? – Batman
@Batman具有該類的標籤數量。我假設爲空!= null。那是錯的嗎? – Pureferret
相關:http://stackoverflow.com/q/12336968/1075247除了我想獲得一個類不是文本 – Pureferret