如何将iPython HTML类发送到.HTML文件?

我有个东西, class 'IPython.core.display.HTML ,我正试图将此保存为 .html 文件。我该怎么做?

def HTML_with_style(df, style=None, random_id=None):
    # https://stackoverflow.com/questions/38511373/change-the-color-of-text-within-a-pandas-dataframe-html-table-python-using-style/38511805#38511805
    from IPython.display import HTML
    import numpy as np
    import re

    df_html = df.to_html()

    if random_id is None:
        random_id = 'id%d' % np.random.choice(np.arange(1000000))

    if style is None:
        style = """
        <style>
            table#{random_id} {{color: blue}}
        </style>
        """.format(random_id=random_id)
    else:
        new_style = []
        s = re.sub(r'</?style>', '', style).strip()
        for line in s.split('\n'):
                line = line.strip()
                if not re.match(r'^table', line):
                    line = re.sub(r'^', 'table ', line)
                new_style.append(line)
        new_style = ['<style>'] + new_style + ['</style>']

        style = re.sub(r'table(#\S+)?', 'table#%s' % random_id, '\n'.join(new_style))

    df_html = re.sub(r'<table', r'<table id=%s ' % random_id, df_html)

    return HTML(style + df_html)


new_df = HTML_with_style(df) # df is a Pandas DataFrame
f = open("test.html", 'w')
f.write(display(new_df))

但我知道

TypeError:write()参数必须是str,而不是None

编辑:注意,我 不 使用IPython/Jupyter。我只是想在我的HTML文件中添加一些CSS,结果发现 HTML_with_style 邮政。如果这是完全错误的做法,请让我知道。