介于<p>和</p>之间

In [7]: content = "<p>I'd like to find the string between the two paragraph tags.</p><br><p>And also this string</p>"

In [8]: re.findall(r'<p>(.+?)</p>', content)
Out[8]: 
["I'd like to find the string between the two paragraph tags.",
 'And also this string']

Regular expressions

import re
matches = re.findall(r'<p>.+?</p>',string)

下面是您在控制台中运行的文本。

>>>import re
>>>string = """<p>I'd like to find the string between the two paragraph tags.</p><br><p>And also this string</p>"""
>>>re.findall('<p>.+?</p>',string)
["<p>I'd like to find the string between the two paragraph tags.</p>", '<p>And also this string</p>']

如果您希望字符串位于p标记之间（不包括p标记），则在findall方法中向**.+？**添加括号

import re
    string = """<p>I'd like to find the string between the two paragraph tags.</p><br><p>And also this string</p>"""
    subStr = re.findall(r'<p>(.+?)</p>',string)
    print subStr

结果

["I'd like to find the string between the two paragraph tags.", 'And also this string']