如何创建Python脚本来检查文本文件在网站上的可用性？

import requests
import os

def check_file_availability(file_path):
    response = requests.head(file_path)
    return response.status_code == 200

def check_text_files_availability(directory):
    file_list = os.listdir(directory)
    for file_name in file_list:
        file_path = os.path.join(directory, file_name)
        if os.path.isfile(file_path) and file_name.endswith('.txt'):
            if check_file_availability(file_path):
                print(f"{file_name} is available.")
            else:
                print(f"{file_name} is not available.")

# 示例用法
directory_path = '/path/to/text/files'
check_text_files_availability(directory_path)