Random combination of letters?

Question

Using Python, how can I get a randomized combination of letters?

I want to do something like this:

def ranStr():
    # some code
    return random_string

So, if I call ranStr(), I want to get out things like (random combination of random length of letters):

'aAFGresdFTg'
'EFRwdfWe'
'rgAijD'

Answer 1

This is one way of doing it.

import random
def generate_key():
    STR_KEY_GEN = 'ABCDEFGHIJKLMNOPQRSTUVWXYzabcdefghijklmnopqrstuvwxyz'
    return ''.join(random.choice(STR_KEY_GEN) for _ in xrange(70))

OR

import random, string
def generate_key():
    return ''.join(random.choice(string.ascii_letters) for _ in xrange(70))

Based on the suggestions.