使用正则表达式或任何其他方式匹配字符串中列表的所有单词

Question

I'm writing a python script where i have to match all words given in list with the string. The list could be as long as possible. But i found operations that will match any of the character but couldn't find operation to match all words in list. For example

 s = "This is a sample string"
 list = ["is", "sample"]

// any operation such that re.search(r'',s) return correct result
// I want that regular expression or approach to do it.

Answer 1

Something like this?

import re

string = "This is a sample string"
lst = ["is", "sample"]

for item in lst:
    rx = re.compile(r"\b{}\b".format(item))
    if rx.search(string):
        print("'{}' is in the string".format(item))

This yields

'is' is in the string
'sample' is in the string