请帮助从 eBay 页面获取价格。
在下面的脚本中,我从两个特定页面获取价格。
import pprint
import requests
import lxml.etree
import lxml.html
import lxml.cssselect
import re
def get_doc(url):
try:
req = requests.get(url)
except Exception:
print('Error open. __', Exception)
else:
html = req.text
doc = lxml.html.document_fromstring(html)
return doc
for url in ['http://www.ebay.com/itm/DW-PDP-Concept-Pearlescent-White-Maple-Drumset-/121271668104?pt=US_Drums&hash=item1c3c5acd88', 'http://www.ebay.com/itm/LOT-OF-20-DRUM-SET-TUNING-KEYS-DW-TAMA-PEARL-SABIAN-and-OTHER-UNIQUE-KEYS-/291092068092?pt=US_Drums&hash=item43c67076fc']:
doc = get_doc(url)
title = doc.xpath('//h1[@id="itemTitle"]/text()')
priceUSD = doc.xpath('//span[@itemprop="price"]/text()')
print(title, priceUSD)
问题是第一页的价格有一个空格('&_n_b_s_p_;')。因此得到错误的xpath值text()。它看起来如下:
['DW/PDP Concept Pearlescent White Maple Drumset'] ['US $1\xa0200,00'] ['LOT OF 20 DRUM SET TUNING KEYS! DW! TAMA! PEARL! SABIAN! and OTHER UNIQUE KEYS!!'] ['US $6,05']
附: 它的价格不正确:'US $1\xa0200,00'
最佳答案
替换\xa0
:
priceUSD = [t.replace('\xa0', '') for t in
doc.xpath('//span[@itemprop="price"]/text()')]
顺便说一句,我得到以下输出,无需修改:
['DW/PDP Concept Pearlescent White Maple Drumset'] ['US $1,200.00']
['LOT OF 20 DRUM SET TUNING KEYS! DW! TAMA! PEARL! SABIAN! and OTHER UNIQUE KEYS!!'] ['US $6.05']
关于python - 如何解析差距?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22125654/