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), retry=retry_if_exception_type(IOError)...
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...
见https://mozillazg.com/2016/08/python-the-right-way-to-catch-exception-then-reraise-another-exception.html#hidpython-2
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....
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: 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trac...
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...
还有一种情况,叫做传递异常(re-raise Exception),即捕捉到了异常,但是又想重新引发它,我们先来看个例子: >>> try: ... try: ... raise IOError ... except IOError: ... print "inner exception" ... raise ... except IOError: ...
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 ...
raise 不需要参数 正如前面所看到的,在使用 raise 语句时可以不带参数,此时 raise 语句处于 except 块中,它将会自动引发当前上下文激活的异常;否则,通常默认引发 RuntimeError 异常。 例如,将上面程序改为如下形式: classAuctionException(Exception):passclassAuctionTest:def__init__(self, init_price): ...