On Tue, May 19, 2020 at 8:43 PM Cameron Simpson <c...@cskk.id.au> wrote:

> >salt = salt.rstrip("=", maxstrip=2)
> >assert not salt.endswith("=")
>
> Reiterating the Python 3.9 suggestion, what about:
>
>   salt2 = salt.cutsuffix(('==', '='))
>

You'd have to call cutsuffix twice.  Valid base64 might end in one, two, or
zero '=', but the result wants to have none.  Actually, no... even two
calls won't always do the right thing.  I'm happy to have the new method
.cutsuffix() , but I don't think it addresses this case.

I was going to suggest an example about dynamically built path components
that may or may not end in '/'.  However:

A. I couldn't find an example in my own code easily, even though I know
I've fiddled with that
B. Someone would scold me for playing with strings rather than using
Pathlib (they'd be right, I realize... but I am sinful in my quick-script
ways).

I'll let someone else, like the OP, advance the case more.  I kinda like
it, but it's not a big deal for me.

-- 
The dead increasingly dominate and strangle both the living and the
not-yet born.  Vampiric capital and undead corporate persons abuse
the lives and control the thoughts of homo faber. Ideas, once born,
become abortifacients against new conceptions.
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