random

The random module implements pseudo-random number generators for various distributions.

Generate a random integer

import random

print(random.randint(1, 9999)) # 7438
print(random.randint(1, 9999)) # 2513
print(random.randint(1, 9999)) # 8846

Make a random string

import random
import string

candidates = string.ascii_lowercase
# make a random string of length 10
result = ''.join(random.choice(candidates) for _ in range(10))
print(result) # kcxgdhpvpp

# make a random string of length 20
candidates = string.ascii_letters + string.digits
result = ''.join(random.choice(candidates) for _ in range(20))
print(result) # bDZ6ircqadMZfoHDM6yZ

Generate a float with Gaussian distribution

import random

mu, sigma = 2, 0.2
print(random.gauss(mu, sigma)) # 2.2689935909942758
print(random.gauss(mu, sigma)) # 2.3242305820201996 
print(random.gauss(mu, sigma)) # 1.9878185078852277

mu is the mean, and sigma is the standard deviation.

Pick multiple elements randomly

import random

students = ['Alice', 'Bob', 'Cindy', 'Doug']
print(random.choices(students, k=2)) # ['Doug', 'Cindy']
print(random.choices(students, k=2)) # ['Cindy', 'Bob']
print(random.choices(students, k=2)) # ['Alice', 'Alice']

choices(population, ..., k=1) returns a k sized list of elements chosen from the population with replacement.

Code Challenge

Try to modify the code in the editor to make a secure enough password.