Delivered signal info in exit status of a process?

Michael Hoffman m.h.3.9.1.without.dots.at.cam.ac.uk at example.com
Fri Sep 24 21:26:10 CEST 2004


Ishwar Rattan wrote:

> Here is a piece code (according to blurb on os.wait, the lower
> order 7 bits of exit status of process should contain the signal
> number of signal that terminated the process..) and signal number
> should be 8 (SIGFPE), similar logic in C-code produces expected
> result.

But that's not what happens when you throw a ZeroDivisonError in python:

$ python -c "2/0"
Traceback (most recent call last):
   File "<string>", line 1, in ?
ZeroDivisionError: integer division or modulo by zero

$ echo $? # this is the exit status in bash
1

If there is a SIGFPE, Python is trapping it and turning it into an 
exception. And it exits with status 1 due to an uncaught exception.
--
Michael Hoffman



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