Can't catch SIGUSR1

[Carsten Gaebler]

Hi there,

I'm experiencing a strange problem with this short test script which
is supposed to catch a SIGUSR1:

<test.py>
#! /usr/bin/python

import os, signal

got_signal = 0
def signal_handler(signo, frame):
	global got_signal
	got_signal = 1

signal.signal(signal.SIGUSR1, signal_handler)
os.kill(os.getpid(), signal.SIGUSR1)
print got_signal
</test.py>

Obviously it should always print '1', which it does on my desktop
machine (Linux kernel 2.2.14). But if I run it on a different machine
(kernel 2.2.19) it prints '0'. This problem applies to SIGUSR1 only,
SIGINT, SIGTERM, SIGUSR2 work fine.

Any ideas?

Regards
Carsten.
-- 
'In iteger arithetric divsion is no the oposite of multiplication.'
                                   -- scenes from comp.lang.python