CODEWITHSUNDEEP
pythonrandom
Andersson
Andersson

Reputation: 52675

How to generate case insensitive string with random module

I need to generate random 32-digit number along with 15-character string to get something like 09826843-5112-8345-7619-372151470268 and qcRtAhieRabnpUaQ. I use following code to generate number:

import random

"-".join(['%08d' % random.randrange(0, 10e7), 
          '%04d' % random.randrange(0, 10e3), 
          '%04d' % random.randrange(0, 10e3), 
          '%04d' % random.randrange(0, 10e3), 
          '%012d' % random.randrange(0, 10e11)])

Is there a similar way to create case insensitive 15-char string with just random module?

Upvotes: 1

Views: 249

Answers (3)

Amit Tripathi
Amit Tripathi

Reputation: 7261

import random

rand_cap = [chr(random.randint(65, 90)) for i in range(7)]
rand_small = [chr(random.randint(97, 122)) for i in range(7)]
rand_chars_list = rand_cap + rand_small

random.shuffle(rand_chars_list)

rand_chars = ''.join(rand_chars_list)

Upvotes: 1

lightalchemist
lightalchemist

Reputation: 10221

import numpy as np
import random
import string


def random_string(num_chars, symbols):    
    return "".join(random.choice(symbols)
                   for _ in range(num_chars))


def random_string2(num_chars, symbols, replace=True):
    """Random string with replacement option"""
    symbols = np.asarray(list(symbols))
    return "".join(np.random.choice(symbols, num_chars, replace))

def main():
    print(random_string(15, string.ascii_letters))
    print(random_string2(15, string.ascii_letters, False))
    print(random_string2(15, string.ascii_letters, True))


if __name__ == "__main__":
    main()

Note that elements in string need not be unique (which I presume to be the case since "qcRtAhieRabnpUaQ" has 2 'a').

If you want the elements to be unique, then @Sergey Gornostaev's solution is probably the most elegant, but that will impose the number of unique elements in ascii_letters as the longest string you can generate.

Upvotes: 3

Sergey Gornostaev
Sergey Gornostaev

Reputation: 7797

import random
import string
''.join(random.sample(string.ascii_letters, 15))

import uuid
str(uuid.uuid4())

Upvotes: 3

Related Questions