python - How can I fix that line re.sub -

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i want pass variable re.sub there error , can't figure out how fix it? 

preset_name = "preset " data = re.sub("name=\"%s[^]]*/select", lambda x:x.group(0).replace('selected',''), html) % preset_name

here error:

typeerror: not arguments converted during string formatting 

data =re.sub("name=\"%s[^]]*/select" % preset_name, lambda x:x.group(0).replace('selected',''), html)

% operates on string


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