Names to Usernames

name2username.py

#!/usr/bin/env python
import itertools
import sys

def GenerateUsername(name):
    USERNAMES = []
    try:
        import unidecode
        name = unidecode.unidecode(name)
    except Exception as e:
        pass
    def GetLists(names=[]):
        ret = []
        lists = []
        if len(names) > 2:
            lists+= list(itertools.permutations(names, 3))
        lists+= list(itertools.permutations(names, 2))
        for s in lists:
            ret.append('.'.join(s))
            ret.append('_'.join(s))
        return ret

    name = str(name).lower()
    fullname = str(name).lower()
    first_name,mid_name,last_name = None,None,None
    names = name.split()
    len_name = len(names)
    if len_name == 2:
        first_name  = names[0]
        last_name   = names[1]
        USERNAMES+= list(GetLists([first_name,last_name]))
    elif len_name == 3:
        first_name  = names[0]
        mid_name    = names[1].replace('.','')
        mid_name    = mid_name.replace('`','')
        last_name   = names[2]
        USERNAMES+= list(GetLists([first_name,last_name,mid_name]))
    elif len_name == 4:
        # well idk what to do with ppl who write CISSP|OSCP|OFUCK next to their names ! 
        pass
    if fullname:
        USERNAMES.append(fullname.replace(' ','.'))
        USERNAMES.append(fullname.replace(' ',''))
    if all([first_name,last_name]):
        USERNAMES.append(first_name)
        USERNAMES.append(last_name)
        USERNAMES.append(f"{first_name[0]}.{last_name}")
        USERNAMES.append(f"{last_name[0]}.{first_name}")
        USERNAMES.append(f"{first_name}.{last_name[0]}")
        USERNAMES.append(f"{last_name}.{first_name[0]}")
    if all([first_name,last_name,mid_name]):
        USERNAMES.append(f"{first_name[0]}.{mid_name}")
        USERNAMES.append(f"{mid_name[0]}.{first_name}")        
        USERNAMES.append(f"{last_name[0]}.{mid_name}")
        USERNAMES.append(f"{mid_name[0]}.{last_name}")
    return USERNAMES

OUTPUT = []
names = open(sys.argv[1],'r').readlines()
for name in names:
    name = name.replace('\n','')
    OUTPUT += GenerateUsername(name)
for username in OUTPUT:
    print(username)