Symptom

Python script hangs and does not timeout

Conditions

The script hangs if the JSON template is used.

Workaround

Modified the script without Json template and the script ran without issues. ----------------------------------------------------- Output when non-working script is used ------------------------------------------------------ switch# python bootflash:man.py ^CTraceback (most recent call last): File "/bootflash/man.py", line 19, in cisco.vrf.set_global_vrf('management') File "/isan/python/scripts/cisco/vrf.py", line 19, in set_global_vrf vrf = VRF.get_vrf_id_by_name(vrf) File "/isan/python/scripts/cisco/vrf.py", line 61, in get_vrf_id_by_name vrf_id = int(VRF._get_vrf_info(0, target_vrf_name, 1)) File "/isan/python/scripts/cisco/vrf.py", line 47, in _get_vrf_info output = nxos_utils.cli_ex('show vrf') File "/isan/python/scripts/nxos_utils.py", line 69, in cli_ex return runVshCmd(cmd) File "/isan/python/scripts/nxos_utils.py", line 65, in runVshCmd output,error = subprocess.Popen(args,stdout = subprocess.PIPE, stderr= subprocess.PIPE).communicate() File "/isan/python/python2.7/subprocess.py", line 806, in communicate return self._communicate(input) File "/isan/python/python2.7/subprocess.py", line 1382, in _communicate stdout, stderr = self._communicate_with_poll(input) File "/isan/python/python2.7/subprocess.py", line 1436, in _communicate_with_poll ready = poller.poll() ---------------------------------------------- output when working script is used ----------------------------------------------- switch# python bootflash:sa.py ------ run 0 ----- ------ run 1 ----- ------ run 2 ----- ------ run 3 ----- ------ run 4 ----- ------ run 5 ----- ------ run 6 ----- ------ run 7 ----- ------ run 8 ----- ------ run 9 ----- switch#

Further Problem Description