As the documentation says, this method call returns “a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive)”. This means that you will get numbers from 0 to 9 in your case. So you’ve done everything correctly by adding one to that number. Generally speaking, if you need to generate numbers from min to max (including both), … Read more
Note: Don’t use rand() for security. If you need a cryptographically secure number, see this answer instead.
does not do what you think. Introduce some parens: (Note that this method gives skewed distributions, though.)
Use random.choice(): For cryptographically secure random choices (e.g., for generating a passphrase from a wordlist), use secrets.choice(): secrets is new in Python 3.6. On older versions of Python you can use the random.SystemRandom class:
How do I generate a random int value in a specific range? I have tried the following, but those do not work: Attempt 1: Bug: randomNum can be bigger than maximum. Attempt 2: Bug: randomNum can be smaller than minimum.
As the documentation says, this method call returns “a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive)”. This means that you will get numbers from 0 to 9 in your case. So you’ve done everything correctly by adding one to that number. Generally speaking, if you need to generate numbers from min to max (including both), … Read more
Important The following code works only if the minimum value is `1`. It does not work for minimum values other than `1`. If you wanted to get a random integer between 1 (and only 1) and 6, you would calculate:
This is entirely implementation specific, but it appears that in the C++ environment you’re working in, RAND_MAX is equal to INT_MAX. Because of this, RAND_MAX + 1 exhibits undefined (overflow) behavior, and becomes INT_MIN. While your initial statement was dividing (random # between 0 and INT_MAX)/(INT_MAX) and generating a value 0 <= r < 1, … Read more
Answer in one line: or even shorter starting with Python 3.6 using random.choices(): A cryptographically more secure version: see this post In details, with a clean function for further reuse: How does it work ? We import string, a module that contains sequences of common ASCII characters, and random, a module that deals with random … Read more
According to documentation: random.sample(population, k) Return a k length list of unique elements chosen from the population sequence. Used for random sampling without replacement. Basically, it picks k unique random elements, a sample, from a sequence: random.sample works also directly from a range: In addition to sequences, random.sample works with sets too: However, random.sample doesn’t … Read more