How can I catch segmentation fault in python?

swapnil at
Wed Nov 17 07:15:14 CET 2010

On Nov 17, 10:26 am, justin <justpar... at> wrote:
> Hi all,
> I am calling a program written in C inside Python using ctypes,
> and it seems that sometimes the program in C crashes while it's being
> used in Python.
> Even under the circumstances, I want to get the Python program going
> by handling the segmentation fault.
> I've already searched the Internet, but couldn't get the right answer
> to catch them.
> Could any of you please let me know how to deal with this and catch
> the segmentation fault in Python?
> Thanks,
> Justin.

Segmentation fault isn't exactly an exception that you can catch. It
usually means something has gone horribly wrong, like dereferencing
invalid pointer, trying to access memory out of process's range. Since
if you run out of memory Python simply raises MemoryError exception,
which you can catch. So that is not the case for segmentation fault.

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