Consider a function taking two args “a” and “b”, which can be of str,
bytes or bytearray type, just so long as both are of the same type.
One easy way to test this is

if sum(isinstance(a, t) and isinstance(b, t) for t in (str, bytes, bytearray)) != 1 :
raise TypeError("args must both be str or bytes")
#end if

Actually, both “and’ and “or” will work.

Lawrence D'Oliveiro <ldo@nz.invalid> writes:
[snip]

Just curious, why do you add "Posting On Python-List Prohibited" to your
subject lines?

--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */

Lawrence D'Oliveiro <ldo@nz.invalid> writes:
> Consider a function taking two args “a” and “b”, which can be of str,
> bytes or bytearray type, just so long as both are of the same type.
> One easy way to test this is

if type(a)==type(b) and type(a) in (str, bytes, bytearray): ...

On Sun, 23 Jun 2024 00:00:29 -0700, Paul Rubin wrote:

> Lawrence D'Oliveiro <ldo@nz.invalid> writes:
>
>> Consider a function taking two args “a” and “b”, which can be of str,
>> bytes or bytearray type, just so long as both are of the same type.
>> One easy way to test this is
>
> if type(a)==type(b) and type(a) in (str, bytes, bytearray): ...

Better to use isinstance instead of direct type comparison.

On Sun, 23 Jun 2024 01:17:35 -0000 (UTC), Lawrence D'Oliveiro wrote:

> Actually, both “and’ and “or” will work.

No it won’t. It’ll fail in the case where one or the other arg is of an
entirely different type.