Python Regex re.sub not working in For loop -

i unable replace particular occurrence of pattern edited text. have used for...loop come how specific occurrence of pattern unable use re.sub statement.

this python 2 code:

def split(content):     count = 0     s = ""     in re.finditer(r'(?s)(\\thinhline\n\\\\\[-16pt]\n)([a-za-z\s\(\)]+)(.*?)(\n *\\\\)', content):         count= count + 1         x =  len(re.findall('^\s*&', i.group(3), re.m))         if x < 6:             break         elif x >= 6:             g = normalizationconstraints(i.group(3),i.group(2)) + "\n"             s = str(g) + "\n"             content = re.sub(i,s,content)     return content 

the error on line:

         content = re.sub(i,s,content) 

since variable "i" apparently not regex.

the error:

typeerror: first argument must string or compiled pattern 

how can fix problem??

thanks.

i'm not sure want, error telling right thing: i isn't regex pattern. re.finditer returns iterator of matchobjects, strings in context. re.sub expects regular expression pattern first argument.

depending on you're trying achieve code, either need use different function re.sub, or need supply actual regex. if can give more details goals (maybe expected output based on sample input, @200_success suggests), help.