global variable is undefined

Question

import socket
import sys
import urllib


port = 6669
mac = "e448c7a96170"

try:
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    ip = socket.gethostbyname( mac  + '.rtn.iptv.svt.sciatl.com')
    sock.connect((ip, port))
    print(ip)
    sock.send("getdom;ipg")
    print "Message Sent"
    while True:
        global m;
        m=sock.recv(10000)
    print(m)
    sock.close()
except:
    print sys.exc_info()

Hi folks I am new to the python.I am trying to print the 'm' value.But it is not printing it since the print statement is outside the loop. I am trying to store the received data in a global variable and use it in the later part.But I am not able to do as the 'm' variable is not visible outside.Any help is appreciated. Thank you

global m doesn't makes any sense here. global is for functions. — Ashwini Chaudhary
– Ashwini Chaudhary, Commented Jan 16, 2013 at 22:40
@AshwiniChaudhary for within functions. (Deleting this comment in a few when you've edited) — phant0m
– phant0m, Commented Jan 16, 2013 at 22:41
@phant0m oh! I missed the 5 minute mark, btw thanks for pointing out the grammatical mistakes in my sentences for the nth time. :) — Ashwini Chaudhary
– Ashwini Chaudhary, Commented Jan 16, 2013 at 22:51

Matti John · Accepted Answer · 2013-01-16 22:38:58Z

3

Your problem is that your loop will never end - while True is going to be true forever, so print(m) is never executed

answered Jan 16, 2013 at 22:38

Matti John

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