reraise:是否重新引发异常,如果设置为True,则在达到最大重试次数后会引发原始异常。 示例代码 以下是更多示例代码,演示了Tenacity的不同用法: 自定义重试条件 from tenacity import retry, stop_after_attempt, retry_if_exception_type@retry( stop=stop_after_attempt(5),
见https://mozillazg.com/2016/08/python-the-right-way-to-catch-exception-then-reraise-another-exception.html#hidpython-2
3.1 传递异常 re-raise Exception 捕捉到了异常,但是又想重新抛出它(传递异常),使用不带参数的raise语句即可: def f1(): print(1/0) def f2(): try: f1() except Exception as e: raise # don't raise e !!! f2() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 在Python2中,为了保持异常的完整信...
捕捉到了异常,但是又想重新引发它(传递异常),使用不带参数的raise语句即可: deff1():print(1/0)deff2():try: f1()exceptExceptionase:raise# don't raise e !!!f2() 在Python2中,为了保持异常的完整信息,那么你捕获后再次抛出时千万不能在raise后面加上异常对象,否则你的trace信息就会从此处截断。以上是...
raise 语句的基本语法格式为: raise [exceptionName [(reason)]] 1. 其中,用 [] 括起来的为可选参数,其作用是指定抛出的异常名称,以及异常信息的相关描述。如果可选参数全部省略,则 raise 会把当前错误原样抛出;如果仅省略 (reason),则在抛出异常时,将不附带任何的异常描述信息。
传递异常 re-raise Exception捕捉到了异常,但是又想重新引发它(传递异常),使用不带参数的raise语句即可: def f1(): print(1/0) def f2(): try: f1() except Exception as e: raise # don't raise e !!! f2() 在Python2中,为了保持异常的完整信息,那么你捕获后再次抛出时千万不能在raise后面加上异常...
raise:Without arguments, ‘raise’ re-raises the last exception, allowing it to be caught and handled further up the call stack. This is useful when you want to handle an exception partially and let other parts of the program handle it more fully. ...
1.1 raise用法 raise [异常名称 [(异常描述)]]1.2 描述 1.3 raise默认抛出RuntimeError 示例 >>>raiseTraceback (mostrecentcalllast):File"<pyshell#29>", line1, in<module>raiseRuntimeError: Noactiveexceptiontoreraise 1.4 raise抛出指定异常 示例 >>>raiseIndexErrorTraceback (mostrecentcall...
Reraise exception after doing some additional processing: A common use case of raise is to reraise an active exception after performing some operations. A good example of this use case is when you need to log the error before raising the actual exception. Some programming languages, such as ...
First we'll ask whether the given number is an instance of thefloatclass, and we'll raise aTypeErrorexception if it is: ifisinstance(number,float):raiseTypeError(f"Only integers are accepted:{number}") We're using Python'sraisestatement and passing in aTypeErrorexception object. We're using...