Python捕获异常时打印详细信息

问题描述

捕获异常是为了程序遇到异常时能处理异常同时接着向下运行，但这样无法看到引发异常的位置

def divide(a, b):
    try:
        return a / b
    except ZeroDivisionError as e:
        print(e)
        return "分母为0"


if __name__ == "__main__":
    print(divide(1, 1))
    print(divide(1, 0))
    # 1.0
    # division by zero
    # 分母为0

解决方案

import traceback
traceback.print_exc()

效果

def divide(a, b):
    try:
        return a / b
    except ZeroDivisionError as e:
        import traceback
        traceback.print_exc()
        return "分母为0"


if __name__ == "__main__":
    print(divide(1, 0))
    '''
    Traceback (most recent call last):
      File "D:/code/test/test4.py", line 3, in divide
        return a / b
    ZeroDivisionError: division by zero
    '''

参考文献

1. python打印异常信息两种方式