从段落中提取整数

Question

我试图仅从段落中提取费用金额，但我遇到了问题。有两笔费用，我想要其中两笔。这是我的代码：http://www.reading.ac.uk/ready-to-study/study/subject-area/modern-languages-and-european-studies-ug/ba-spanish-and-history.aspx

fees_div = soup.find('div', class_='Fees hiddenContent pad-around-large tabcontent')
if fees_div:
    fees_list = fees_div.find_all('\d+','p')
    course_data['Fees'] = fees_list
    print('fees : ', fees_list)

Answer 1

请试试这个：

In [10]: import requests
In [11]: from bs4 import *
In [12]: page = requests.get('http://www.reading.ac.uk/ready-to-study/study/subject-area/modern-languages-and-european-studies-ug/ba-spanish-and-history.aspx')
In [13]: soup = BeautifulSoup(page.content, 'html.parser')
In [14]: [x for x in soup.find('div', class_='Fees hiddenContent pad-around-large tabcontent').text.split() if u"\xA3" in x]
Out[14]: ['£9,250*', '£17,320']

Answer 2

试一试：

import re
import requests
from bs4 import BeautifulSoup

r = requests.get('http://www.reading.ac.uk/ready-to-study/study/subject-area/modern-languages-and-european-studies-ug/ba-spanish-and-history.aspx')
soup = BeautifulSoup(r.text,'html.parser')
item = soup.find(id='Panel5').text
fees = re.findall(r"students:[^£]+(.*?)[*\s]",item)
print(fees)

输出：

['£9,250', '£17,320']

Answer 3

import requests
from bs4 import BeautifulSoup
import re

r = requests.get('http://www.reading.ac.uk/ready-to-study/study/subject-area/modern-languages-and-european-studies-ug/ba-spanish-and-history.aspx')
soup = BeautifulSoup(r.text,  'html.parser')
fees_div = soup.find('div', class_='Fees hiddenContent pad-around-large tabcontent')
m = re.search(r'£[\d,]+', fees_div.select('p:nth-of-type(2)')[0].get_text())
fee1 = m[0]
m = re.search(r'£[\d,]+', fees_div.select('p:nth-of-type(3)')[0].get_text())
fee2 = m[0]
print(fee1, fee2)

打印：

£9,250 £17,320

更新

您也可以使用 Selenium 抓取页面，尽管在这种情况下它没有任何优势。例如（使用 Chrome）：

from selenium import webdriver
from bs4 import BeautifulSoup
import re


options = webdriver.ChromeOptions()
options.add_argument("headless")
options.add_experimental_option('excludeSwitches', ['enable-logging'])
driver = webdriver.Chrome(options=options)

driver.get('http://www.reading.ac.uk/ready-to-study/study/subject-area/modern-languages-and-european-studies-ug/ba-spanish-and-history.aspx')
soup = BeautifulSoup(driver.page_source,  'html.parser')
fees_div = soup.find('div', class_='Fees hiddenContent pad-around-large tabcontent')
m = re.search(r'£[\d,]+', fees_div.select('p:nth-of-type(2)')[0].get_text())
fee1 = m[0]
m = re.search(r'£[\d,]+', fees_div.select('p:nth-of-type(3)')[0].get_text())
fee2 = m[0]
print(fee1, fee2)
driver.quit()

更新

考虑只使用以下内容：只需扫描整个 HTML 源代码而不使用 BeautifulSoup 使用简单的正则表达式 findall 查找费用：

import requests
import re

r = requests.get('http://www.reading.ac.uk/ready-to-study/study/subject-area/modern-languages-and-european-studies-ug/ba-spanish-and-history.aspx')
print(re.findall(r'£[\d,]+', r.text))

打印：

['£9,250', '£17,320']