The issue of generation of random numbers is quite common, but sometimes, we have applications that require us to better that and provide some functionality of generating a random string of digits and alphabets for applications such as passwords. Let’s discuss certain ways in which this can be performed.
Method #1 : Using random.choices()
This function of random module can help us achieve this task, and provides a one liner alternative to a whole loop that might be required for this particular task. Works with Python > v3.6 .
# Python3 code to demonstrate # generating random strings # using random.choices() import string import random # initializing size of string N = 7 # using random.choices() # generating random strings res = ''.join(random.choices(string.ascii_uppercase + string.digits, k = N)) # print result print("The generated random string : " + str(res)) |
The generated random string : 0D5YE91
Method #2 : Using secrets.choice()
For Cryptographically more secure random numbers, this function of secret module can be used as it’s internal algorithm is framed in a way to generate less predictable random numbers. Works with Python > v3.6 .
# Python3 code to demonstrate # generating random strings # using secrets.choice() import secrets import string # initializing size of string N = 7 # using random.choices() # generating random strings res = ''.join(secrets.choice(string.ascii_uppercase + string.digits) for i in range(N)) # print result print("The generated random string : " + str(res)) |
The generated random string : T7HPKVR
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