Python True Generator

#!/usr/bin/python

import math
import random

Big_S=list('QWERTYUIOPASDFGHJKLZXCVBNM')
Low_S=list('qwertyuiopasdfghjklzxcvbnm')
Num_S=list('1234567890')

lb=3
ll=3
ln=3

Pass=""
PassA=""

m = ['6001','6002','6003','6004']
h = ['6005','6006','6007','6008','6009']

vh = ['6000', '7000', '8000','9000']
za = ['9260', '9261', '9262', '9263']

def Big():
    for i in range(lb):
        global Pass
        Pass=""
        n=random.randrange(len(Big_S))
        Pass=Pass+Big_S[n]
    return Pass

def Low():
    for i in range(ll):
        global Pass
        n=random.randrange(len(Low_S))
        Pass=Pass+Low_S[n]
    return Pass

def Num():
    for i in range(ln):
        global Pass
        n=random.randrange(len(Num_S))
        Pass=Pass+Num_S[n]
    return Pass

def All():
    global PassA
    PassA = ""
    if lb>0:
        PassA=Big()
    if ll>0:
        PassA=Low()
    if ln>0:
        PassA=Num()

    PassR=list(PassA)
    random.shuffle(PassR)
    PassEnd=""
    for i in range(len(PassR)):
        PassEnd=PassEnd+PassR[i]
    return PassEnd

def writeUsers(i,b,hou,roo):

    o = 0;
    for it in vh:
        if it == str(i):
            i=za[o];
        o+=1;

    global f
    global f1
    global f2

    global m
    global h

    print("Executing: " + str(i) + "/" + str(b))

    Passwd = All();

    Dlpn = "DLPN_ua_user"


    for mains in m:
        if mains == str(i):
            Dlpn = "DLPN_ua_main"

    for mains in h:
        if mains == str(i):
            Dlpn = "DLPN_ua_house"

    if len(str(i)) < 3:
        f1.write(str(i)+"\t\t\t"+Passwd+"\t\t"+Dlpn+"\t"+str(hou)+"\t\t"+str(roo)+"\n");
    else:
        f1.write(str(i)+"\t\t"+Passwd+"\t\t"+Dlpn+"\t"+str(hou)+"\t\t"+str(roo)+"\n");

    l = ['['+ str(i)+']', 'fullname = '+ str(i), 'registersip = no', 'host = dynamic', 'callgroup = 1', 'mailbox = '+ str(i),
         'call-limit = 100', 'type = peer', 'username = '+ str(i), 'transfer = yes', 'callcounter = yes', 'context = '+Dlpn,
         'cid_number = '+ str(i), 'hasvoicemail = no', 'vmsecret = ', 'email =', 'threewaycalling = no', 'hasdirectory = no',
         'callwaiting = no', 'hasmanager = no', 'hasagent = no', 'hassip = yes', 'hasiax = no', 'secret = ' +Passwd, 'nat = force_rport,comedia',
         'canreinvite = no', 'directmedia = no', 'dtmfmode = info', 'insecure = no', 'pickupgroup = 1', 'macaddress = '+ str(i),
         'autoprov = yes', 'label = '+str(i), 'LINEKEYS = 1', '', '', 'linenumber = ', 'disallow = all', 'allow = ulaw,h264,alaw,h263,g722']

    for item in l:
        f.write(item+"\n")

    nuls = "";
    nuls = "";

    if roo < 10:
        nuls = "00";
    if roo > 9:
        nuls = "0";
    if roo > 99:
        nuls = "";

    if (roo !=0):
        f2.write("exten = "+str(hou)+nuls+str(roo)+",1,Goto(ringroups-custom-"+str(hou)+nuls+str(roo)+",s,1)\n");

f = open('out_users.conf','w')
f1 = open('out_secrets.text','w')
f2 = open('out_extention.conf','w')

f1.write("Username:\tPassword:\tRole:\t\t\tHouse:\tRoom:\n");

#panels main 1 - 4
for i in range(1, 5):
    writeUsers("600"+str(i),6005,0,0)
#panels house 5 - 9
for i in range(5, 9):
    writeUsers("600"+str(i),6010,i-4,0)

f2.write("[ringgroups]\n");

#links
for j in range(0, 298):
    writeUsers(str(6010+j),6306,str(1),j+1)

for j in range(0, 360):
    writeUsers(str(7001+j),7360,str(2),j+1)

for j in range(0, 192):
    writeUsers(str(8001+j),8192,str(3),j+1)

for j in range(0, 156):
    writeUsers(str(9001+j),9156,str(4),j+1)

#groups
for j in range(0, 298):
    nuls = "";
    if j+1 < 10:
        nuls = "00";
    if j+1 > 9:
        nuls = "0";
    if j+1 > 99:
        nuls = "";
    f2.write("\n[ringroups-custom-"+str(1)+nuls+str(j+1)+"]\n")
    f2.write("exten = s,1,NoOp(House"+str(1)+"_Room"+str(j+1)+")\n")
    mess = "exten = s,1,Dial(SIP/" + str(6010+j) + ",35,${DIALOPTIONS}i)\n"
    f2.write(mess);
    f2.write("exten = s,1,Hangup\n");

for j in range(0, 360):
    nuls = "";
    if j+1 < 10:
        nuls = "00";
    if j+1 > 9:
        nuls = "0";
    if j+1 > 99:
        nuls = "";
    f2.write("\n[ringroups-custom-"+str(2)+nuls+str(j+1)+"]\n")
    f2.write("exten = s,1,NoOp(House"+str(2)+"_Room"+str(j+1)+")\n")
    mess = "exten = s,1,Dial(SIP/" + str(7001+j) + ",35,${DIALOPTIONS}i)\n"
    f2.write(mess);
    f2.write("exten = s,1,Hangup\n");

for j in range(0, 192):
    nuls = "";
    if j+1 < 10:
        nuls = "00";
    if j+1 > 9:
        nuls = "0";
    if j+1 > 99:
        nuls = "";
    f2.write("\n[ringroups-custom-"+str(3)+nuls+str(j+1)+"]\n")
    f2.write("exten = s,1,NoOp(House"+str(3)+"_Room"+str(j+1)+")\n")
    mess = "exten = s,1,Dial(SIP/" + str(8001+j) + ",35,${DIALOPTIONS}i)\n"
    f2.write(mess);
    f2.write("exten = s,1,Hangup\n");

for j in range(0, 156):
    nuls = "";
    if j+1 < 10:
        nuls = "00";
    if j+1 > 9:
        nuls = "0";
    if j+1 > 99:
        nuls = "";
    f2.write("\n[ringroups-custom-"+str(4)+nuls+str(j+1)+"]\n")
    f2.write("exten = s,1,NoOp(House"+str(4)+"_Room"+str(j+1)+")\n")
    mess = "exten = s,1,Dial(SIP/" + str(9001+j) + ",35,${DIALOPTIONS}i)\n"
    f2.write(mess);
    f2.write("exten = s,1,Hangup\n");

f2.close();
f1.close();
f.close();