tripcode gen

import hashlib, base64
import re, sys

def main():
    if len(sys.argv) != 2:
        print("Give a regular expression as a command-line argument")
        return
    matcher = re.compile(sys.argv[1])
    with open("/dev/urandom", "rb") as f:
        for i in xrange(0, 1000000000): # 10000000
            passpfx = base64.b64encode(f.read(5))[:-2]
            for sfx in "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789":
                password = passpfx + sfx
                trip = base64.b64encode(hashlib.sha256(password).digest())[0:6]
                if matcher.match(trip):
                    print((password, trip))
main()