[Python-ideas] Optional parameters without default value

[Ethan Furman]

On 03/03/2017 06:29 AM, Victor Stinner wrote:

> An alternative for generated signature of multiple optional arguments
> is "bytearray([source[, encoding[, errors]]])", but I'm not a big fan
> of nested [...],

But that's not the same thing.

   bytearry([source,] [encoding,] [errors])

says that each argument can be passed without passing any others.

   bytearray([source [, encoding [,errors]]])

says that in order to pass encoding, source must also be specified.

At least, that's what it says to me.

--
~Ethan~