如何从html代码中删除除表以外的所有内容

from bs4 import BeautifulSoup

def remove_non_table_content(html_code):
    # 解析HTML代码
    soup = BeautifulSoup(html_code, 'html.parser')

    # 定位表格元素
    tables = soup.find_all('table')

    # 删除非表格内容
    for element in soup.find_all():
        if element.name != 'table' and element.parent.name != 'table':
            element.extract()

    # 生成新的HTML代码
    new_html_code = soup.prettify()

    return new_html_code