I wrote a python script to monitor the statuses of some network resources, an infinite pinger if you will. It pings the same 3 nodes forever until it receives a keyboard interrupt. I tried using tee to redirect the output of the program to a file, but it does not work:
λ sudo ./pingster.py
15:43:33 node1 SUCESS | node2 SUCESS | node3 SUCESS
15:43:35 node1 SUCESS | node2 SUCESS | node3 SUCESS
15:43:36 node1 SUCESS | node2 SUCESS | node3 SUCESS
15:43:37 node1 SUCESS | node2 SUCESS | node3 SUCESS
15:43:38 node1 SUCESS | node2 SUCESS | node3 SUCESS
^CTraceback (most recent call last):
File "./pingster.py", line 42, in <module>
main()
File "./pingster.py", line 39, in main
sleep(1)
KeyboardInterrupt
λ sudo ./pingster.py | tee ping.log
# wait a few seconds
^CTraceback (most recent call last):
File "./pingster.py", line 42, in <module>
main()
File "./pingster.py", line 39, in main
sleep(1)
KeyboardInterrupt
λ file ping.log
ping.log: empty
I am using colorama for my output, I thought that perhaps could be causing the issue, but I tried printing something before I even imported colorama, and the file is still empty. What am I doing wrong here?
Edit: Here is the python file I'm using
#!/home/nate/py-env/ping/bin/python
from __future__ import print_function
from datetime import datetime
from collections import OrderedDict
from time import sleep
import ping
import colorama
def main():
d = {
'node1': '10.0.0.51',
'node2': '10.0.0.50',
'node3': '10.0.0.52',
}
addresses = OrderedDict(sorted(d.items(), key=lambda t: t[0]))
colorama.init()
while True:
status = []
time = datetime.now().time().strftime('%H:%M:%S')
print(time, end='')
for location, ip_address in addresses.items():
loss, max_time, avg_time = ping.quiet_ping(ip_address, timeout=0.5)
if loss < 50:
status.append('{0} SUCESS'.format(location))
else:
status.append(
'{}{} FAIL{}'.format(
colorama.Fore.RED,
location,
colorama.Fore.RESET,
)
)
print(' | '.join(status))
sleep(1)
if __name__ == '__main__':
main()
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