如何捕获ctypes中抛出的异常？ [英] How to catch an exception thrown in ctypes?

问题描述

我正在使用Ctypes从Python调用的一些C代码。在C库的某处，发生异常和/或中止（）被调用。有什么办法可以在我的Python调用者代码中找到这个吗？ （平台是Linux）

解决方案

您可能可以在SIGABRT上设置一个信号处理程序来处理由abort（）引起的信号， 。
但是，失败的断言可能与损坏的内存和其他坏的东西 - 通常有一个原因，断言失败。因此，通常终止应用程序是您可以做的最好的事情（除非在终止前显示/记录处理程序中的错误）。

I am working with some C code called from Python using ctypes. Somewhere in the bowels of the C library, an exception is occurring and/or abort() is being called. Is there any way I can catch this in my Python caller code? (Platform is Linux)

解决方案

You might be able to setup a signal handler on SIGABRT to handle the signal caused by abort(). However, failed assertions might go along with corrupted memory and other bad things - there's usually a reason why an assertion failed. So usually terminating the applications is the best thing you can do (except displaying/logging an error in your handler before terminating).

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