Python 3.9 Feature Random Bytes Generation

Feature: Random Bytes Generation

See also

• https://towardsdatascience.com/10-awesome-python-3-9-features-b8c27f5eba5c

• https://bugs.python.org/issue40286

Another feature that has been added in the 3.9 release is the function random.Random.randbytes() .

This function can be used to generate random bytes.

We can generate random numbers but what if we needed to generate random bytes? Prior to 3.9 version, the developers had to get creative to generate the random bytes.

Although we can use os.getrandom(), os.urandom() or secrets.token_bytes() but we can’t generate pseudo-random patterns.

As an instance, to ensure the random numbers are generated with expected behaviour and the process is reproducible, we generally use the seed with random.Random module.

As a result, random.Random.randbytes() method has been introduced. It can generate random bytes in a controlled manner too.