logging - Why time.sleep() breaks syslog-ng in Python -

i have been trying log script output syslog-ng, however, if utilize time.sleep() function in code, breaks syslog-ng , stops logging output of script.

here details.

// samplescript.py import time while true: print "hello world" time.sleep(5)

i utilize pipe it's output syslog-ng, , utilize unix logger tool, i'm calling script this;

$ python sampleoutput.py | logger

this not generating output log file. code simple, , working.

by way, don't thing wrong syslog-ng conf file, since if utilize code below, works expected.

// samplescript.py while true: print "hello world"

q: why time.sleep() breaking syslog-ng? there equivalence sleep() function might utilize on code?

thanks in advance.

you need flush buffered stdout-stream:

import sys sys.stdout.flush()

how flush output of python print?

python logging sleep syslog

Kamlesh