my_function_that_may_throw_zero_division_error()5.3.2 使用pytest等框架管理异常测试 pytest框架提供了更灵活的异常处理方式,可通过pytest.raises()上下文管理器验证函数是否抛出了预期异常。 import pytest def test_division_by_zero(): with pytest.raises(ZeroDivisionError): divide_something(10, 0) 通过精心...
d:\g_Working\Z_Z_python_environment\environment\regulatory_labels\venv\Scripts\python.exe#EASY-INSTALL-ENTRY-SCRIPT:'PyInstaller==3.3.1','console_scripts','pyinstaller'importreimportsys #forcompatibilitywitheasy_install;see #2198__requires__='PyInstaller==3.3.1'try:from importlib.metadataimportdistri...
1、将错误的类型、值和回溯传递给_exit__方法。 2、允许__exit__方法处理异常。 3、如果__exit__返回,True将得到妥善处理。 如果True不返回任何其他内容(None),__exit__with语句会引起异常。 实例 Traceback (most recentcalllast):File"<stdin>", line2,in<module> AttributeError:'file'objecthasnoattrib...
FloatingPointError:这个错误由导致错误的浮点操作产生,前提是已经打开了浮点异常控制(fpectl),启用fpectl时,要求编译解释器提供 with-fpectl标志,但是标准文档中不提倡使用fpectl IOError:输入或输出失败时会产生,如磁盘满了,输入文件不存在等等 ImportError:无法导入一个模块或者模块中的一个成员时会产生该异常 ...
1. ModuleNotFoundError: No module named 'pip' 2. /usr/bin/python: No module named virtualenvwrapper 3. TypeError: zinterstore() got multiple values for argument 'aggregate' 4. AssertionError: View function mapping is overwriting an existing endpoint function: 1 ...
尝试打开一个不存在的磁盘文件一类的操作会引发一个操作系统输入/输出(I/O)错误. 任何类型的 I/O 错误都会引发 IOError 异常。 AttributeError: 尝试访问未知的对象属性 3.检测和处理异常 异常可以通过 try 语句来检测. 任何在 try 语句块里的代码都会被监测, 检查有无异常发生。try 语句有两种主要形式: try...
exit([status]) Thestatusparameter is an optional parameter in the Python exit() function. It represents the code’s exit status. It is an integer value; for example, an exit status 0 indicates successful termination, while any non-zero value signifies an error or abnormal termination. ...
SqlSatelliteCall error: Failed to load library /opt/mssql-extensibility/lib/sqlsatellite.so with error libc++abi.so.1: cannot open shared object file: No such file or directory. STDOUT message(s) from external script: SqlSatelliteCall function failed. Plea...
subprocess.CalledProcessError: Command '['python', 'timer.py']' returned non-zero exit status 2.There are various ways to deal with failures, some of which will be covered in the next section. The important point to note for now is that run() won’t necessarily raise an exception if ...
) except KeyboardInterrupt: print("\nCtrl + C") except: print("\nSomething Error!") else: print(f"The next year your name: {age + 1}") finally: print("脚本执行结束,祝你好运!") 特殊场景 with 语句 with 语句是用来简化代码的。比如在将打开文件的操作放在with 语句中,代码块结束后,文件...