random module in python

RANDOM MODULE:

Using the random module, we can generate pseudo-random numbers. The function random() generates a random number between zero and one [0, 0.1 .. 1].  Numbers generated with this module are not truly random but they are enough random for most purposes.


Random number between 0 and 1. We can generate a (pseudo) random floating point number with this small code:

from random import *

print random()     # Generate a random number between 0 and 1

Generate a random number between 1 and 100 To generate a whole number (integer) between one and one hundred use:

from random import *

print randint(1, 100)   # generates random number between 1 and 100.

This will print a random integer. If you want to store it in a variable you can use:

from random import *  

x = randint(1, 100)    # Pick a random number between 1 and 100.
print x

Random number between 1 and 10
To generate a random floating point number between 1 and 10 you can use the uniform() function

from random import *   print uniform(1, 10) Picking a random item from a list Fun with lists We can shuffle a list with this code: from random import * items = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] shuffle(items) print items To pick a random number from a list: from random import *   items = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]   x = sample(items, 1) # Pick a random item from the list print (x[0])   y = sample(items, 4) # Pick 4 random items from the list print (y) We can do the same thing with a list of strings: from random import *   items = ['Alissa','Alice','Marco','Melissa','Sandra','Steve']   x = sample(items, 1) # Pick a random item from the list print (x[0])   y = sample(items, 4) # Pick 4 random items from the list print (y)