Python generate random integer, float and string is widely used in python applications, such as generate password, delay time and initialize weights in deep learning. In this tutorial, we will write a simple example to generate them.
Preliminaries
#import libraries import random import string
Generate a random integer
print(random.randint(1,50)) #37
Generate a random integer with 2 steps
print(random.randrange(0, 101, 2)) #22
Generate a random float
print(random.random()) #0.9285431485395974
Generate a random float with uniform distribution
print(random.uniform(1, 10)) #1.344220194940056
Select a random char from a string
print(random.choice('abcdefghijklmnopqrstuvwxyz!@#$%^&*()'))
#w
Generate random string list with length limit
print(random.sample('zyxwvutsrqponmlkjihgfedcba',5))
#['x', 'l', 't', 'e', 'h']
Generate random string with length limit
ran_str = ''.join(random.sample(string.ascii_letters + string.digits, 8)) print (ran_str) #fQ3aSgTi
Select a random element from a list
print(random.choice(['tutorial', 'example', 'https://www.tutorialexample.com'])) #https://www.tutorialexample.com
Random list order
items = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] random.shuffle(items) print(items) #[1, 0, 9, 6, 7, 8, 4, 5, 3, 2]