question, such as the question, the code is as follows:
import functools
import json
class JSONOutputError(Exception):
def __init__(self,message):
self._message=message
def _str__(self):
return self._message
def json_output(decorated_=None,indent=None,sort_keys=False):
if decorated_ and (indent or sort_keys):
raise RuntimeError("Unexpected arguments.")
def actual_decorator(func):
@functools.wraps(func)
def inner(*args,**kwargs):
try:
result=func(*args,**kwargs)
except JSONOutputError as ex:
result={
"status":"error",
"message":str(ex),
}
return json.dumps(result,indent=indent,sort_keys=sort_keys)
return inner
if decorated_:
return actual_decorator(decorated_)
else:
return actual_decorator
inner function raise JSONOutputError