使用方法 retry库提供了一种简单的装饰器(decorator)方法来实现重试功能。下面是使用retry库的基本形式: fromretryimportretryimportrequests@retry(Exception,tries=3,delay=2)deffetch_data(url):response=requests.get(url)response.raise_for_status()#
如何在 Python 中使用 retrying 库实现失败重试? Python 的 retry 装饰器如何工作? retry 官:https://pypi.org/project/retry/ 译:https://spaces.ac.cn/archives/3902 Easy to use retry decorator. Features No external dependency (stdlib only). (Optionally) Preserve function signatures (pip install decor...
1.不需要传参的装饰器写法: max_retry 为默认重试的次数 代码语言:javascript 代码运行次数:0 AI代码解释 importrequests defretry(func):definner(*args,**kwargs):ret=func(*args,**kwargs)max_retry=3number=0ifnot ret:whilenumber<max_retry:number+=1print("尝试第:{}次".format(number))result=fun...
Decorator function that instantiates the Retrying object @param *dargs: positional arguments passed to Retrying object @param **dkw: keyword arguments passed to the Retrying object """ # support both @retry and @retry() as valid syntax #兼容@retry装饰器有参数和无参数的情况 if len(dargs) ==...
可是后来发现,python 中有retry这个库,只要安装就可以了。 pip install retry 其中的解释如下: def retry(exceptions=Exception, tries=-1, delay=0, max_delay=None, backoff=1, jitter=0, logger=logging_logger): """Return a retry decorator.
python的重试模块retry、retrying 一,retry模块1,pip安装retry模块1 pip install retry 2,retry介绍1234567891011 def retry(exceptions=Exception, tries=-1, delay=0, max_delay=None, backoff=1, jitter=0, logger=logging_logger): """Return a retry decorator. :param exceptions: an exception or a ...
"""Return a retry decorator. :param exceptions: an exception or a tuple of exceptions to catch. default: Exception. :param tries: the maximum number of attempts. default: -1 (infinite). :param delay: initial delay between attempts. default: 0. :param max_delay: the maximum value of dela...
python def retry_with_callback(tries=3, delay=1, error_callback=None): def decorator(func): @wraps(func) def wrapper(*args, **kwargs): attempt = 0 while attempt < tries: try: return func(*args, **kwargs) except Exception as e: attempt += 1 if attempt < tries: time.sl...
@my_decorator def add(a,b): '''add two numbers''' return a+b class MyTestCase(unittest.TestCase): def test_add(self): # 测试装饰器是否正确执行 self.assertEqual(add(2,4),5) def test_b(self): # 测试装饰器是否保留了原函数的元信息 ...
def default(value): def decorator(func): def wrapper(*args, **kw): try: res = func(*args, **kw) return res except Exception: return value return wrapper return decorator @default('aaa') @retry(tries=3) def get_content(value): try: x = value / 0 print('ok') except ZeroDivisionEr...