[英]Scrape web pages using python
我有以下 web 頁面
</div><a href="https://www.emag.ro/laptop-lenovo-thinkbook-15-iil-cu-procesor-intel-core-i7-1065g7-pana-la-3-90-ghz-15-6-full-hd-16gb-512gb-ssd-intel-iris-plus-graphics-free-dos-mineral-grey-20sm003jrm/pd/DKBK1TMBM/#reviews-section" rel="nofollow" class="star-rating-container js-product-url" data-zone="reviews"><div class="star-rating star-rating-read rated-4.02 star-rating-sm ">
<div class="star-rating-inner " style="width: 100%"></div>
</div><div class="star-rating-text ">
我想從這個產品中提取評級。 對於此產品,評級在此處定義。
<div class="star-rating star-rating-read rated-4.02 star-rating-sm ">
而且我無法提取4.02。
我的代碼如下所示:
rating = container.find_all(class_="star-rating star-rating-read rated")[0].text
我知道上面的代碼不行,我可以提取產品的價格和名稱,但我無法提取評級:(
這是您可以嘗試的解決方案,
import re
# regex extract the decimal digits from string
extract_ = re.compile(r"\d+.\d+")
for div in container.find_all("div", attrs={"class": 'star-rating'}):
for attr in div.attrs['class']:
ratings_ = extract_.search(attr)
if ratings_:
print(ratings_.group()) # 4.02
嘗試這樣的事情:
rating = str(container.find_all(class_="star-rating")[0])
rindex = rating.index("rated")
print(rating[rindex+6:rindex+10])
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