[Python-Dev] Python 3.x and bytes

Greg Ewing greg.ewing at canterbury.ac.nz
Thu May 19 00:39:34 CEST 2011


Ethan Furman wrote:

> some_var[3] == b'd'
> 
> 1) a check to see if the bytes instance is length 1
> 2) a check to see if
>    i) the other object is an int, and
>    2) 0 <= other_obj < 256
> 3) if 1 and 2, make the comparison instead of returning NotImplemented?

It might seem convenient, but I'd worry that it would lead to
even more confusion in other ways. If someone sees that

    some_var[3] == b'd'

is true, and that

    some_var[3] == 100

is also true, they might expect to be able to do things
like

    n = b'd' + 1

and get 101... or maybe b'e'...

-- 
Greg


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