human
Solve the following python programming problem given the following code:
def log_request_success(self, method, full_url, path, body, status_code, response, duration) : 
    ' Log a successful API call.  ' 
    def _pretty_json(data) : 
        try : 
            return json.dumps (json.loads (data), sort_keys = True, indent = 2, separators = (',', ': ')).replace ("'", '\\u0027') 
except (ValueError, TypeError) : 
            return data 
if body : 
        body = body.decode ('utf-8') 
logger.info ('%s %s [status:%s request:%.3fs]', method, full_url, status_code, duration) 
    logger.debug ('> %s', body) 
    logger.debug ('< %s', response) 
    if tracer.isEnabledFor (logging.INFO) : 
        path = (path.replace ('?', '?pretty&', 1) if ('?' in path) else (path + '?pretty')) 
        if self.url_prefix : 
            path = path.replace (self.url_prefix, '', 1) 
tracer.info ("curl -X%s 'http://localhost:9200%s' -d '%s'", method, path, (_pretty_json (self) if body else '')) 
if tracer.isEnabledFor (logging.DEBUG) : 
        tracer.debug ('#[%s] (%.3fs)
#%s', status_code, duration, (_pretty_json (response).replace ('
', '
#') if response else '')) 

    
    

    Fix the buggy line: tracer.info ("curl -X%s 'http://localhost:9200%s' -d '%s'", method, path, (_pretty_json (self) if body else ''))
assistant
#Here is Python code to fix the buggy line: tracer.

tracer.info ("curl -X%s 'http://localhost:9200%s' -d '%s'", method, path, (_pretty_json (body) if body else ''))