Detect Multiple Keywords in a Python String with Any, Regex, or Custom Functions

Introduction

A fan asked how to determine if a string contains any of several keywords (e.g., "宿舍", "公寓", "酒店") and return 1 when a match is found.

Solution Overview

Three approaches are provided: using any(), using regular expressions, and using a custom function that returns 1.

Method 1 – any()

Using the built‑in any() function with a list comprehension:

s = '宿舍 饿了 酒店'
any([x in s for x in ['宿舍', '公寓', '酒店']])

Method 2 – Regular Expression

Leveraging re.search to match any of the keywords:

import re
text = '宿舍 饿了 酒店'
re.search('宿舍|公寓|酒店', text)

Method 3 – Custom Function Returning 1

# coding: utf-8
import re

def find_kw(text):
    kw = ['宿舍', '公寓', '酒店']
    for k in kw:
        f_t = re.search(k, text)  # Returns a match object if found
        if f_t:
            return 1

if __name__ == '__main__':
    text = '我住在希尔顿酒店'
    result = find_kw(text)
    if result:
        print(result)  # Prints 1 when a keyword is found

Conclusion

The three solutions demonstrate how to check for multiple keywords in a Python string using simple built‑in functions, regular expressions, or a custom function that returns a specific value. Feel free to adapt any method to your own projects.

Additional resources: https://github.com/cassieeric/Python-office-automation