When you use the raise statement in Python to raise (or throw) an exception, you signal an error or an unusual condition in your program. With raise, you can trigger both built-in and custom exceptions. You can
Using this form, the exception your caller would catch has the trackback from where the original error occurred. Notice the bottom exception has the line where we performed the invalid division as well as the line where we reraise the exception. Custom Exception classCloudFirewallError(Exception)...
@retry(reraise=True,stop=stop_after_attempt(3))asyncdefcoro_func():pass 高级特性: Custom Callbacks 除了一些常见用法以外,你可能想添加一些自己的重试判断逻辑:比如根据方法执行的结果判断,或者在方法执行前打印方法调用的参数等。这时候,我们就可以使用Custom Callbacks来定制化扩展了。 Customcallbacks有两种扩展...
1.通过在Cloud SQL instance overview page上验证示例连接名称（传递给.connect方法的第一个参数），仔细...
") Exception: fail tblib.decorators.return_error >>> from tblib.decorators import return_error >>> inner_2r = return_error(inner_2) >>> e = inner_2r() >>> e <tblib.decorators.Error object at ...> >>> e.reraise() Traceback (most recent call last): ... File "<doctest ...
error_remapped_callable(*args, **kwargs) 67 return callable_(*args, **kwargs) 68 except grpc.RpcError as exc: ---> 69 six.raise_from(exceptions.from_grpc_error(exc), exc) 70 71 return error_remapped_callable /opt/conda/miniconda3/lib/python3.8/site-packages/six.py in raise_from(...
For example, you can call a custom callback function after all retries failed, without raising an exception (or you can re-raise or do anything really).. testcode:: def return_last_value(retry_state): """return the result of the last call attempt""" return retry_state.outcome.result(...
excepthook) try: no_exception(code) except: last_type, last_value, last_traceback = sys.exc_info() with suppress_stderr(): sys.excepthook(last_type, last_value, last_traceback) raise finally: self.assertNotEqual(prev_hook, sys.excepthook) didyoumean_disablehook() self.assertEqual(prev...
File"/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 93,in__exit__six.reraise(dj_exc_type, dj_exc_value, traceback) File"/usr/local/lib/python2.7/dist-packages/django/db/backends/__init__.py", line 124,inensure_connection ...
:114,'POP_JUMP_IF_TRUE':115,'POP_TOP':1,'PRINT_EXPR':70,'RAISE_VARARGS':130,'RERAISE':...