How to run existing python script parallel using multiprocessing

[lravikumarvsp]

Hi,

I had a python script that searches for an item in a list.
Now my requirement is to start a separate thread for each item search in the for loop.
How can I achieve this?
Please help

import glob
import os
import csv
patterns = ['ACM','ACX','AW','BC']
for pattern in patterns:
    base_path = '/ai2/data/dev/admin/inf/*{}*'
    search_path =  base_path.format(pattern)
    for f in glob.glob(search_path):
        print("-----------------------")
        print ("The directory path is:")
        print f
        print("List of files in the directory are:")
        os.chdir('/ai2/data/dev/admin/inf/')
        os.chdir(f)
        cwd = os.getcwd()   
        for subdir, dirs, files in os.walk(cwd, topdown=True):
            for file23 in glob.glob('*.err'):
                print file23

In the above script for every "pattern" value, I need to start a separate thread

Output:
[root@edgenod]# python p123.py
-----------------------
The directory path is:
/ai2/data/dev/admin/inf/inf_ACM_pvt
List of files in the directory are:
dsplit.err
-----------------------
The directory path is:
/ai2/data/dev/admin/inf/inf_ACX_pvt
List of files in the directory are:
accountshighfocus.err
acm_access_log.err
-----------------------
The directory path is:
/ai2/data/dev/admin/inf/inf_AW_pvt
List of files in the directory are:
aware.err
-----------------------
The directory path is:
/ai2/data/dev/admin/inf/inf_BC_pvt
List of files in the directory are:
run_ingest_BC_daily_1249.err