Python Generate a Secure Random Password in One Line!"

[ratwolf]

Want to generate a secure, random password in just one line of Python? Here's a quick one-liner using random and string modules:

import random, string

password = ''.join(random.choices(string.ascii_letters + string.digits + string.punctuation, k=12))
print(password)

This creates a random 12-character password with letters (both uppercase and lowercase), digits, and special characters. You can change the k=12 to adjust the length of the password

 

[menator01]

This can also be done with random.sample
Here is a link to a generator that I posted a while back. It's a function but could be made a one liner.

Thread 'Random 10 character password generator'

Aug 23, 2022

Simple password generator

# Do the imports
from random import sample
import string

# Combine upper and lower case letters with digits and special characters
# into a string
characters = string.ascii_letters + string.digits + '!@#$&*+'

# Define the function
def password_generator():
    # Return a joined string with 10 sample charcters
    return ''.join(sample(characters, 10))

# Do a loop calling the function 10 times to get 10 random passwords
for i in range(10):
    print(password_generator())

output

1!Ixl&yfH9
54&vCPmDlM
m63oQwMcLV
2T$W8uAaRv
DZE2WS@O39
bL@5ezyf98...

• menator01
• Replies: 0
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• 

 

[menator01]

One more

from string import printable, whitespace 
from random import sample
print(''.join(sample(''.join(list(c for c in printable if c not in whitespace)),10)))

 

[ratwolf]

Thread '"Less is More: Your Best Python One-Liner?"'

Apr 18, 2025

Estimate π via the Monte Carlo method:

import numpy as np; print(4 * np.mean(np.sum(np.random.rand(10**7, 2)**2, axis=1) < 1))

• ratwolf
• Replies: 2
• Forum: Share with the community

 

[BlackCube]

Normally, the security of a password relates directly to its length and character set.

The security of a pseudorandomly generated password depends only on how many possible initial states there are in the random number generator.

I personally wouldn't do it. Just my opinion.