Python string.format KeyError

Question

This question has been answered before, but my string doesn't have any extra curly brackets that would mess up the formatting, so at the moment I'm completely clueless as to why the error

Error is KeyError : content

html = """
    <table class=\"ui celled compact table\" model=\"{model}\">
        {theaders}
        <tbody>
            {content}
        </tbody>
    </table>
    """
html = html.format(model=model)
html = html.format(content=data)
html = html.format(theaders=theaders)

Answer 1

you could do it line by line using a dictionary and passing the dict as keyword arguments using **

d=dict()
d['model']=model
d['content']=data
d['theaders']=theaders

html = html.format(**d)