On Mon, Jun 29, 2020 at 11:30 AM Robert Kern <robert.kern@gmail.com> wrote:
On Mon, Jun 29, 2020 at 11:10 AM Kevin Sheppard <kevin.k.sheppard@gmail.com> wrote:
  1. The total number of digits in the binary representation is somewhere between 32 and 128.

I like using the standard library `secrets` module.

>>> import secrets
>>> secrets.randbelow(1<<128)
If you want an easy-to-follow rule, just use the above snippet to get a 128-bit number. More than 128 bits won't do you any good (at least by default, the internal bottleneck inside of SeedSequence is a 128-bit pool), and 128-bit numbers are just about small enough to copy-paste comfortably.

Sorry, `secrets.randbits(128)` is the cleaner form of this. 

Robert Kern