Writing in to excel sheet for every 10 min

import serial
import csv
import os
import time
import sys
import string



def main():
    pass

if __name__ == '__main__':
    main()
    COUNT=0
    f=open("new.csv","w+");
    result = csv.writer(f,delimiter=',')
    result_statement=("Dir","ACTUATOR_ON_OFF","MODE","DATE","TIME"," TRACKER DESIRED ANGLE"," TRACKER ACTUAL ANGLE")
    result.writerow(result_statement)


    while(COUNT<=5):
    while((time.sleep(5))):
      #time.sleep(5)
      ser=serial.Serial()
      ser.port=12
      ser.baudrate=9600
      ser.open()
      str=ser.read(150)
      print "string are:\n",str
      print type(str)
      val=str.split(":")
      print "value is:\n",val
      lines=str.split("\r\n")
      print  "line statement are :\n",lines
      COUNT=COUNT+1



      wst=[]
      for line in lines[:-1]:
            parts=line.split(":")
            for p in parts[1:]:
                wst.append(p)


            #result = csv.writer(f,delimiter=',')
            #wst.append(parts[1:])

      print "wst:\n",wst

      result.writerow(wst)



            #print parts
            #f=open("new.csv","a+");
            #result = csv.writer(f,delimiter=',')

            #print result_statement
            #f.write("%s," % ":".join(parts[1:])
f.close()
ser.close()

>>> import time
>>> while True:
...     print "hello"   # or do other work
...     time.sleep(5)
hello
hello
hello