Python threading.Timer function doesn't wait 'n' seconds before raise exception

Question

I'm trying to figure out why timer doesn't wait 300 secs, but raise imediately exception. Anybody can help me to resolve this issue? thanks.

here's my code:

import sys
import os
from java.lang import System
import getopt
import time as systime
from threading import Timer
import time

[...]

def _startServer(ServerName):

    cd('domainRuntime:/ServerLifeCycleRuntimes/'+ServerName);
    state=_serverstatus(ServerName);

    while (state!='RUNNING'):

        try:
            cmo.start();
            while (state!='RUNNING'):
                state=_serverstatus(ServerName);
                java.lang.Thread.sleep(1000);

                t = threading.Timer(300.0,timeout)
                t.start()

        except:
            print 'Error in getting current status of ' +ServerName+ '\n';
            print 'Please check logged in user has full access to complete the start operation on ' +ServerName+ '\n';
            print 'Timeout, NodeManager may be down. Checking... ' + '\n';

            os.popen('sh /home/oracle/scripts/logAnalytics.sh')
            systime.sleep(60)

            state=_serverstatus(ServerName);

[...]

and the result:

Initializing WebLogic Scripting Tool (WLST) ...

Welcome to WebLogic Server Administration Scripting Shell

Type help() for help on available commands

172.31.129.68:7001
Connecting to t3://172.31.129.68:7001 with userid weblogic ...
Successfully connected to Admin Server 'AdminServer' that belongs to domain 'cll5_domain'.

Warning: An insecure protocol was used to connect to the
server. To ensure on-the-wire security, the SSL port or
Admin port should be used instead.


Successfully connected to the domain

Location changed to domainRuntime tree. This is a read-only tree with DomainMBean as the root.
For more help, use help(domainRuntime)
Server Server_2 is :SHUTDOWN
Trying To Start Server:Server_2...
Server Server_2 is :SHUTDOWN
Server Server_2 is :SHUTDOWN
Error in getting current status of Server_2

Please check logged in user has full access to complete the start operation on Server_2

Timeout, NodeManager may be down. Checking...

Server Server_2 is :SHUTDOWN
Server Server_2 is :SHUTDOWN
Error in getting current status of Server_2

Please check logged in user has full access to complete the start operation on Server_2

Timeout, NodeManager may be down. Checking...

Server Server_2 is :RUNNING
Disconnected from weblogic server: AdminServer


Exiting WebLogic Scripting Tool.

(Note that the string "Server Server_2 is :SHUTDOWN" must be written on screen several times before the next process start. About 60 times, because there's a while cycle that print the string of server status every 5 secs and the timer is 300 secs.)

Environment: Oracle Linux 6, Oracle Weblogic 11

Any help is apreciated.