Match and extract if found

[Pedroski55]

Just for getting the bitcoins, I made 2 sets of random ip4 addresses.

To compare them is easy. Any other junk in your text files that is not 15 characters long can easily be excluded.

import random

def makeIP():
    mylist = []
    for j in range(4):
        # the bigger the number X in random.randint(1, X), the less chance of overlap
        num = random.randint(1, 10)
        mylist.append(str(num))        
        mystring = '.'.join(mylist)
        mystring = mystring + '\n'
    return mystring

path2txt = '/home/pedro/myPython/random/'

with open(path2txt + 'ip1.txt', 'w') as ip1:
    ipstring = ''
    for i in range(1000):
        ip = makeIP()
        ipstring = ipstring + ip    
    ip1.write(path2txt + ipstring)
        
with open(path2txt + 'ip2.txt', 'w') as ip2:
    ipstring = ''
    for i in range(1000):
        ip = makeIP()
        ipstring = ipstring + ip    
    ip2.write(path2txt + ipstring)        

with open(path2txt + 'ip1.txt') as ip:
    mylist = ip.readlines()    
    myset1 = set(mylist)

with open(path2txt + 'ip2.txt') as ip:
    mylist = ip.readlines()    
    myset2 = set(mylist)

# get the intersection of myset1 and myset2
intersect = myset1 & myset2
difference1_2 = myset1 - myset2
difference2_1 = myset2 - myset1