Very simple (configurable) random password generator

password_generate.py

#!/usr/bin/env python
"""
Configurable password generator

Usage instructions:
    1. Configure generator by modifying values below
    2. Execute script
"""

from random import shuffle
from random import choice
#----------------------------------------------------------------------
# Config
num = { 'upper' : 4,
        'lower' : 4,
        'digit' : 3,
        'spchr' : 2
      }
let = { 'upper' : 'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
        'lower' : 'abcdefghijklmnopqrstuvwxyz',
        'digit' : '0123456789',
        'spchr' : '!@#$%^&()-_=+[]{}<>'
      }
#----------------------------------------------------------------------
# Execute
passw = [ choice(let[c]) for c in let.keys() for n in range(num[c]) ]
shuffle(passw)
print(''.join(passw))