In Python(programming) how do you generate random decimals?

Question

I know about randint but that only generates whole numbers and I would like to be able to generate numbers with 2 decimal places.

Answer 1

Generate a random int between 0 and 100 (for two decimal places) times the number you want and then divide by 100

eg:

>>> from random import randint

>>> def randomDecimal(a, b):

...........return randint(int(a), int(100 * b)) / 100.0

>>> randomDecimal(7, 49)

13.65

>>>

or you can use the random method to return a random floating point number between 0 and 1.

>>> import random

>>> random.random()

0.013448514990953231

>>>  

Answer 2

If you need a random number between 1 and 10 you can simple compute a random number from 100 to 999 and divide the result by 100 which will give you a number with 2 decimals.

Answer 3

You should use numpy or scipy: http://numpy.scipy.org/ or http://www.scipy.org/