从文档中可以看到:

从Beautiful Soup 4.1.2开始，你可以使用关键字参数class_通过CSS类进行搜索:

soup.find_all("a", class_="sister")

在这种情况下是:

soup.find_all("div", class_="stylelistrow")

它还适用于:

soup.find_all("div", class_="stylelistrowone stylelistrowtwo")

这应该可以工作:

soup = BeautifulSoup(sdata)
mydivs = soup.findAll('div')
for div in mydivs: 
    if (div.find(class_ == "stylelistrow"):
        print div

或者我们可以使用lxml，它支持xpath和非常快!

from lxml import html, etree 

attr = html.fromstring(html_text)#passing the raw html
handles = attr.xpath('//div[@class="stylelistrow"]')#xpath exresssion to find that specific class

for each in handles:
    print(etree.tostring(each))#printing the html as string

你可以使用BS3优化你的搜索，只找到那些给定类的div:

mydivs = soup.find_all("div", {"class": "stylelistrow"})

CSS选择器

单班第一场比赛

soup.select_one('.stylelistrow')

匹配列表

soup.select('.stylelistrow')

复合类(即与另一个类)

soup.select_one('.stylelistrow.otherclassname')
soup.select('.stylelistrow.otherclassname')

复合类名中的空格，例如class = stylelistrow otherclassname被替换为"."。您可以继续添加类。

类列表(OR -匹配当前的任何一个)

soup.select_one('.stylelistrow, .otherclassname')
soup.select('.stylelistrow, .otherclassname')

类属性，其值包含一个字符串，例如"stylelistrow":

以“style”开头:

[class^=style]

以row结尾

[class$=row]

包含“列表”:

[class*=list]

^， $和*是操作符。更多信息请点击:https://developer.mozilla.org/en-US/docs/Web/CSS/Attribute_selectors

如果你想排除这个类，那么，以anchor tag为例，选择没有这个类的anchor tags:

a:not(.stylelistrow)

你可以在:not()伪类中传递简单、复合和复杂的css选择器列表。见https://facelessuser.github.io/soupsieve/selectors/pseudo-classes/:不是

---

Bs4 4.7.1 +

innerText包含字符串的特定类

soup.select_one('.stylelistrow:contains("some string")')
soup.select('.stylelistrow:contains("some string")')

N.B.

汤式饮料2.1.0 + 2020年12月

NEW: In order to avoid conflicts with future CSS specification changes, non-standard pseudo classes will now start with the :-soup- prefix. As a consequence, :contains() will now be known as :-soup-contains(), though for a time the deprecated form of :contains() will still be allowed with a warning that users should migrate over to :-soup-contains(). NEW: Added new non-standard pseudo class :-soup-contains-own() which operates similar to :-soup-contains() except that it only looks at text nodes directly associated with the currently scoped element and not its descendants.

具有特定子元素的特定类，例如标签

soup.select_one('.stylelistrow:has(a)')
soup.select('.stylelistrow:has(a)')

这招对我很管用:

for div in mydivs:
    try:
        clazz = div["class"]
    except KeyError:
        clazz = ""
    if (clazz == "stylelistrow"):
        print div