(int,float)):raiseTypeError(f'Unsupported type for b:{type(b).__name__}')returna/btry:result=divide_numbers(10,'2')exceptTypeErrorase:print(f'Error:{e}')
二、异常报错Raise使用 使用raise抛出异常 当程序出现错误,python会自动引发异常,也可以通过raise显示地引发异常。一旦执行了raise语句,raise后面的语句将不能执行。 演示raise用法 try: s = None if s is None: print "s 是空对象" raise NameError #如果引发NameError异常,后面的代码将不能执行 print len(s) ...
assertFalse,"触发错误"# 类似与使用if...raise#if True:# raise AssertionError("触发错误")#输出#===Traceback(most recent call last):File"E:\play.py",line1,inassertFalse,"触发错误"AssertionError:触发错误 错误日志 我参考了这篇博客:https://www.cnblogs.com/CJOKER/p/8295272.html Logging:输出...
AI代码解释 defperson_encoder(obj):ifisinstance(obj,Person):return{"name":obj.name,"age":obj.age}raiseTypeError("Object of type 'Person' is not JSON serializable")# 创建一个Person实例person_instance=Person(name="Emma",age=28)# 序列化为JSON字符串json_string_custom=json.dumps(person_instance,...
raiseValueError# shorthand for 'raise ValueError()' If you need to determine whether an exception was raised but don’t intend to handle it, a simpler form of theraisestatement allows you to re-raise the exception: >>> >>>try:...raiseNameError('HiThere')...exceptNameError:...print('...
raise TypeError("Bad arguments") Literal类型,表明一个表达式等于某个特定的原始值。例如,如果我们用 type 注释一个变量Literal["foo"],mypy 将理解该变量不仅是 typestr,而且还特别等于string"foo"。 from typing import overload, Union, Literal # The first two overloads use Literal[...] so we can ...
Finally, if you’re writing a library for other developers, then you must document the exceptions that your functions and methods can raise. You should list the types of exceptions that your code may raise and briefly describe what each exception means and how your users can handle them in ...
defmy_abs(x):ifnotisinstance(x,(int,float)):raiseTypeError('bad operand type')ifx>=0:returnxelse:return-x 添加了参数检查后,如果传入错误的参数类型,函数就可以抛出一个错误: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 >>>my_abs('A')Traceback(most recent call last):File"<stdin>"...
# Will raise a SpecialFileError for unsupported file types copy2(srcname, dstname) # catch the Error from the recursive copytree so that we can # continue with other files except Error, err: errors.extend(err.args[0]) except EnvironmentError, why: ...
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...