捕获Python中的任何错误 [英] Catch any error in Python

问题描述

是否可以在Python中捕获任何错误?我不在乎具体的异常是什么，因为所有异常都会有相同的后备.

Is it possible to catch any error in Python? I don't care what the specific exceptions will be, because all of them will have the same fallback.

推荐答案

单独使用except会捕获除segfault之外的任何异常.

Using except by itself will catch any exception short of a segfault.

try:
    something()
except:
    fallback()

您可能需要单独处理KeyboardInterrupt，以防需要使用它退出脚本:

You might want to handle KeyboardInterrupt separately in case you need to use it to exit your script:

try:
    something()
except KeyboardInterrupt:
    return
except:
    fallback()

此处列出了很多不错的基本异常.我也很喜欢 traceback 模块，用于从异常中检索调用堆栈.在异常处理程序中尝试traceback.format_exc()或traceback.print_exc().

There's a nice list of basic exceptions you can catch here. I also quite like the traceback module for retrieving a call stack from the exception. Try traceback.format_exc() or traceback.print_exc() in an exception handler.

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