class Error(Exception): """Base class for exceptions in this module.""" pass class InputError(Error): """Exception raised for errors in the input. Attributes: expression -- input expression in which the error occurred message -- explanation of the error """ def __init__(self, expression...
...# but may be overriddeninexception subclasses...x,y=inst.args # unpack args...print('x =',x)...print('y =',y)...<class'Exception'>('spam
用户可以继承 Exception 来实现自定义的异常,我们看一些自定义异常的例子: class Error(Exception): """Base class for exceptions in this module.""" pass class InputError(Error): """Exception raised for errors in the input. Attributes: expression -- input expression in which the error occurred me...
# 异常通常应该直接或间接地从 Exception 类派生 # 大多数异常都定义为名称以“Error”结尾,类似于标准异常的命名 class InputError(Error): """Exception raised for errors in the input. Attributes: expression -- input expression in which the error occurred message -- explanation of the error ""...
response.raise_for_status()except HTTPErrorashttp_err:print(fHTTPerror occurred:{http_err})# Python3.6except Exceptionaserr:print(f Other error occurred:{err})# Python3.6else:print(Success!) 如果你调用.raise_for_status(),将针对某些状态码引发HTTPError异常。如果状态码指示请求成功,则程序将继续进行...
classError(Exception): """Base class for exceptions in this module.""" pass classInputError(Error): """Exception raised for errors in the input. Attributes: expression -- input expression in which the error occurred message -- explanation of the error ...
一种通常的做法是为这个包建立一个基础异常类,43#然后基于这个基础类为不同的错误情况创建不同的子类444546classError(Exception):47"""Base class for exceptions in this module."""48pass495051classInputError(Error):52"""Exception raised for errors in the input.5354Attributes:55expression -- input ...
import fooclassBar(object): ...def__del__(self): foo.cleanup(self.myhandle) And you then tried to do this fromanother_mod.py: importmodmybar =mod.Bar() You’d get an uglyAttributeErrorexception. Why? Because, as reportedhere, when the interpreter shuts down, the module’s global va...
an exception instance with the arguments stored ininstance.args. For convenience, the exception instance defines__str__()so the arguments can be printed directly without having to reference.args. One may also instantiate an exception first before raising it and add any attributes to it as ...
class Error(Exception): """Base class for exceptions in this module.""" pass class InputError(Error): """Exception raised for errors in the input. Attributes: expression -- input expression in which the error occurred message -- explanation of the error ...