[kovidgoyal]

You dont have to use a lambda function you can use a normal function as well


For example

def my_function(match):
   length_of_backrefs = len(''.join([match.group(i) for i in range(1, 4)]))
   full_string = match.group()
   # do something to full string
   return substituted_string

And in the regexp list

(re.compile(r'(.*)<br.*?>', re.IGNORECASE), my_function),