当我还需要登录时，如何使用pywebcopy下载整个Python网页？

import pywebcopy
from getpass import getpass

username = input("请输入用户名：")
password = getpass("请输入密码：")

login_data = {
    'username': username,
    'password': password
}

url = 'https://example.com'  # 替换为您要下载的网页地址
download_folder = 'path/to/save'  # 替换为您要保存的文件夹路径

# 使用pywebcopy下载网页
pywebcopy.config['bypass_robots'] = True
pywebcopy.config['allowed_file_ext'] = ['.html', '.css', '.js', '.png', '.jpg', '.jpeg', '.gif']
pywebcopy.config['overwrite'] = True
pywebcopy.config['delete_orphans'] = True

pywebcopy.crawl(url, download_folder, login=login_data)