Password

# A=36 P=10^-4 V=15pas/min T=2week 
# S*=(V*T)/P=(15*60*24*7*2)/10^-4=302400/10^-4=3024*10^6
# L=Ln(S)/Ln(A)=Ln(3024*10^6)/Ln(36)=6 
# A^L=36^6=2176782336
# S*<=A^L

import random

array=[]
password=[]
i=0
while i<10:
    array.append(i)
    i+=1
alpha = 'a'
for i in range(0, 26):
    array.append(alpha)
    alpha = chr(ord(alpha) + 1) 
while len(password)<6:
    password.append(random.choice(array))
print(password)