使用Random.random [30,35]打印30,35之间的随机数。 种子（70）

Question

Probably a simple answer, not sure what I am missing. For a homework assignment I have to use random.random() to generate numbers between 30 and 35. The seed has to be set to 70 to match the pseudo-random numbers with the grader. This wasn't in my lecture so I am a little stumped as to what to do.

I have:

import random 
def problem2_4():
    print(random.random(30,35))

But this is clearly wrong.

The assignment says the output should look like (note: for the problem i use def problem2_4() just for the assignment grading system)

problem2_4()
[34.54884618961936, 31.470395203793395, 32.297169396656095, 30.681793552717807,
 34.97530360173135, 30.773219981037737, 33.36969776732032, 32.990127772708405, 
 33.57311858494461, 32.052629620057274]

Answer 1

The output [blah, blah, blah] indicates that it is a list of numbers rather than a series of numbers printed one-by-one.

In addition, if you want random floating point values, you'll need to transform the numbers from random.random (which are zero to one) into that range.

That means you'll probably need something like:

import random                                # Need this module.
def problem2_4():
    random.seed(70)                          # Set initial seed.
    nums = []                                # Start with empty list.
    for _ in range(10):                      # Will add ten values.
        nums += [random.random() * 5 + 30]   # Add one value in desired range.
    print(nums)                              # Print resultant list.

Of course, the Pythonic way to do this would be:

import random
random.seed(70)
print([random.random() * 5 + 30 for _ in range(10)])

Bit that might be a bit ahead of where your educator is working. Still, it's good to learn this stuff as early as possile since you'll never be a Pythonista until you do :-)

Answer 2

The function that you are looking for is randint , which returns an integer (whole number) between the specified minimum and maximum values.

So the solution would be

random.randint(30, 35)

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