Jeremy Banks wrote:
> To someone who's a novice to this, could someone explain to me why it
> has to be an existing keyword at all? Since not identifiers are valid
> in that context anyway, why couldn't it be a new keyword that can
> still be used as an identifier in valid contexts? For example (not
> that I advocate this choice of keyword at all):

>     def foo(bar reinitialize_default []): # <-- it's a keyword here
>         reinitialize_default = "It's an identifier here!"

> That would be a syntax error now and if it were defined as a keyword
> only in that context it wouldn't introduce backwards compatibility
> problems and wouldn't force us to reuse an existing keyword in a
> context that may be a bit of a stretch.

> Is there a reason that this wouldn't be a viable approach?