HTTP response capturing issue

[Larz60+]

Code is much easier to read if you use f-string (python 3.6 or newer required)

import os
import csv
import subprocess
import time


dslamUser = "admin"
dslamPass = "1234"
httpresponse = '200 OK'

with open('dslams.csv', 'r') as csvfile:
    x = csv.reader(csvfile, delimiter=',', quotechar='|')
    for row in x:
        dslam = list(row)
        dslamName = dslam[0].strip()
        dslamAddr = dslam[1].strip()
        print(f'Now Trying:{dslamName} IP:{dslamAddr}')
        print ('Authenticating with DSLAM....')
        cmdargs = f"--auth-no-challenge -t 5 --http-user={dslamUser} --http-password={dslamPass} "
            f"http://{dslamAddr}/config-0_.dat -O /dev/null"
        data = ""
        while not ('200 OK') in data:
            task = subprocess.Popen(f"wget {cmdargs}", shell=True, stdout=None, stderr=subprocess.PIPE)
            time.sleep(3)
            dummy, data = task.communicate()
        os.system(f"wget --auth-no-challenge -t 5 --http-user={dslamUser} --http-password={dslamPass} "
            f"-O '{dslamName}_'`date +%Y%m%d%H%M`'.dat' http://{dslamAddr}/config-0_.dat")