python中如何通过报错信息定位问题（异常传播轨迹）

小程序：扫一扫查出行
【扫一扫了解最新限行尾号】
复制小程序

class SelfException(Exception):
passdef main():
firstMethod()def firstMethod():
secondMethod()def secondMethod():
thirdMethod()def thirdMethod():
raise SelfException("自定义异常信息")main()#输出结果：
D:\soft\python36\python.exe D:/myproject/crazy_python/07/7.4/traceback_test.py
Traceback (most recent call last):
File "D:/myproject/crazy_python/07/7.4/traceback_test.py", line 24, in <module>
main()
File "D:/myproject/crazy_python/07/7.4/traceback_test.py", line 9, in main
firstMethod()
File "D:/myproject/crazy_python/07/7.4/traceback_test.py", line 13, in firstMethod
secondMethod()
File "D:/myproject/crazy_python/07/7.4/traceback_test.py", line 17, in secondMethod
thirdMethod()
File "D:/myproject/crazy_python/07/7.4/traceback_test.py", line 21, in thirdMethod
raise SelfException("自定义异常信息")
__main__.SelfException: 自定义异常信息