Python - 循环遍历 HTML 标签并使用 IF [英] Python - Looping through HTML Tags and using IF

问题描述

我正在使用 python 从网页中提取数据.该网页有一个重复出现的 html div 标签，其 class = "result"，其中包含其他数据(例如位置、组织等).我能够使用漂亮的汤成功地循环浏览 html，但是当我添加一个条件时，例如某个词(例如，'NHS')存在于该段中，它不会返回任何内容 - 尽管我知道某些段包含它.这是代码:

soup = BeautifulSoup(content)详细信息 = 汤.findAll('div', {'class': 'result'})详情见详情:如果NHS"详细说明:打印细节

希望我的问题有意义...

解决方案

findAll 返回标签列表，而不是字符串.也许将它们转换为字符串?

s = "
golly
NHS
foo
"汤 = BeautifulSoup(s)详细信息 = 汤.findAll('p')type(details[0]) # 打印:<class 'BeautifulSoup.Tag'>

您正在标签中寻找字符串.最好在字符串中查找字符串...

详细介绍:如果 str(detail) 中的NHS":打印细节

I am using python to extract data from a webpage. The webpage has a reoccurring html div tag with class = "result" which contains other data in it (such as location, organisation etc...). I am able to successfully loop through the html using beautiful soup but when I add a condition such as if a certain word ('NHS' for e.g.) exists in the segment it doesn't return anything - though I know certain segments contain it. This is the code:

soup = BeautifulSoup(content)
details = soup.findAll('div', {'class': 'result'})

for detail in details:
    if 'NHS' in detail:
        print detail

Hope my question makes sense...

解决方案

findAll returns a list of tags, not strings. Perhaps convert them to strings?

s = "<p>golly</p><p>NHS</p><p>foo</p>"
soup = BeautifulSoup(s)
details = soup.findAll('p')
type(details[0])    # prints: <class 'BeautifulSoup.Tag'>

You are looking for a string amongst tags. Better to look for a string amongst strings...

for detail in details:
    if 'NHS' in str(detail):
        print detail

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