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Python

Posted by Mohammad Alawad
Mohammad Alawad
1,877 Points

What method in Random module can give a random number from a range inside a loop without repetition.

What method in Random module can give a random number from a range inside a loop so that it gives all numbers without repetition. for example:

example_list=[]

while len (example_list) <5: num=random.randrange (0,4) example_list.append (num)

I want example_list to have unique numbers from 0-4 but not repetid numbers. the list has to be 5 digits.

I was trying this but this method always gives repeated numbers.

thank you.

Regards,

1 Answer

Nathan Burnham
Nathan Burnham
7,827 Points
Nathan Burnham
Nathan Burnham
7,827 Points

You can add an if statement to check whether or not the number is already in the list. Another thing you are going to want to do is change the randrange from (0, 4) to (0, 5) because the end number is not included in the range. As is, you'll have an infinite look because the while loop will never be False.

while len(example_list) < 5: num = random.randrange(0, 5) if num in example_list: pass else: example_list.append(num)