human
Solve the following python programming problem given the following code:
def hits_groups_info(page_nr, retries = getattr (settings, 'CRAWLER_RETRY_COUNT', 200), sleep = getattr (settings, 'CRAWLER_RETRY_SLEEP', 0.1)) : 
    'Returns info about every hit group on the given page.

    Since mturk.com enforces a limit on the number of connections to the
    website, often the process must retry downloads. Retries will continue as
    long as the html downloaded is empty or includes limit exceeded message.

    Keyword arguments:
    page_nr -- page to process
    retries -- number of retries to make, by default a big number
    sleep -- how long to wait between each retry

    ' 
    def __fix_missing_hash(hg) : 
        hg ['group_id_hashed'] = (not bool (hg.get ('group_id', None))) 
        if hg ['group_id_hashed'] : 
            hg ['group_id'] = hg.get ('hit_id', None) 
            log.debug ('group id not found, trying hit_id %s', hg ['group_id']) 
            if (not hg ['group_id']) : 
                composition = (';'.join (map (str, (hg ['title'], hg ['requester_id'], hg ['time_alloted'], hg ['reward'], hg ['description'], hg ['keywords'], hg ['qualifications']))) + ';') 
                hg ['group_id'] = hashlib.md5 (composition).hexdigest () 
                log.debug ('hit_id not found, creating hash: %s  %s', hg ['group_id'], hg ['title']) 
url = hitsearch_url (page_nr) 
    html = _get_html (url) 
    rows = [] 
    for (n, info) in enumerate (parser.hits_group_listinfo (html)) : 
        __fix_missing_hash (info) 
        info ['page_number'] = page_nr 
        info ['inpage_position'] = (n + 1) 
        rows.append (info) 
log.debug ('hits_groups_info done: %s;;%s', page_nr, len (rows)) 
    if (not rows) : 
        log.debug ('No content in page {0}, returning'.format (html)) 
return rows 

    
    

    Fix the buggy line: log.debug ('No content in page {0}, returning'.format (html))
assistant
#Here is Python program to fix the buggy line: log.

log.debug ('No content in page {0}, returning'.format (page_nr))