Code block function syntax, anonymous functions decorator

[castironpi at gmail.com]

On Feb 6, 5:45 pm, Jean-Paul Calderone <exar... at divmod.com> wrote:
> On Wed, 06 Feb 2008 23:59:27 +0100, "Diez B. Roggisch" <de... at nospam.web.de> wrote:
>
>
>
>
>
> >castiro... at gmail.com schrieb:
> >> def run3( block ):
> >>    for _ in range( 3 ):
> >>       block()
>
> >> run3():
> >>    normal_suite()
>
> >> Introduces new syntax; arbitrary functions can follow 'colon'.
>
> >> Maintains readability, meaning is consistent.
>
> >> Equivalent to:
>
> >> def run3( block ):
> >>    for _ in range( 3 ):
> >>       block()
>
> >> @run3
> >> def anonfunc():
> >>    normal_suite()
>
> >> Simplification in cases in which decorators are use often.
>
> >This is non-sensical - how do you invoke anonfunc? They would all bind
> >to the same name, run3. Or to no name as all, as your "spec" lacks that.
>
> As he said, the decorator version is the _equivalent_ to the syntax he
> was proposing.  The point isn't to decorate the function, so perhaps he
> shouldn't have used decorator syntax, but instead:
>
>     def anonfunc():
>         normal_suite()
>     run3(anonfunc)
>     del anonfunc
>
> So it's not non-sensical.  It's a request for a piece of syntax.
>
>
>
> >Besides, it's butt-ugly IMHO. But taste comes after proper definition...
>
> It's properly defined.  Not that I'm endorsing this or anything.  I'd
> rather not see half-assed syntax proposals at all, even if they're super
> great (and some of the syntax that's made it into Python is much worse
> than this).
>
> Jean-Paul- Hide quoted text -
>
> - Show quoted text -

Yes.  @run3( anonfunc ) runs -in-place-.  Jean-Paul's was a closer
equivalent.

It's used for a piece of code that won't get called like with
statements.