[Python-ideas] Pre-PEP Adding A Secrets Module To The Standard Library

[Serhiy Storchaka]

On 20.09.15 02:40, Tim Peters wrote:
> No attempt to be minimal here.  More-than-less "obvious" is more important:
>
> Bound methods of a SystemRandom instance
>      .randrange()
>      .randint()
>      .randbits()
>          renamed from .getrandbits()
>      .randbelow(exclusive_upper_bound)
>          renamed from private ._randbelow()
>      .choice()

randbelow() is just an alias for randrange() with single argument.
randint(a, b) == randrange(a, b+1).

These functions are redundant and they have non-zero cost.

Would not renaming getrandbits be confused?

>   Token functions
>      .token_bytes(nbytes)
>          another name for os.urandom()
>      .token_hex(nbytes)
>          same, but return string of ASCII hex digits
>      .token_url(nbytes)
>          same, but return URL-safe base64-encoded ASCII
>      .token_alpha(alphabet, nchars)
>          string of `nchars` characters drawn uniformly
>          from `alphabet`

token_hex(nbytes) == token_alpha('0123456789abcdef', nchars) ?
token_url(nbytes) == token_alpha(
     'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_',
      nchars) ?