On Feb 6, 8:10 pm, [EMAIL PROTECTED] wrote: > On Feb 6, 5:45 pm, Jean-Paul Calderone <[EMAIL PROTECTED]> wrote: > > > > > > > On Wed, 06 Feb 2008 23:59:27 +0100, "Diez B. Roggisch" <[EMAIL PROTECTED]> > > wrote: > > > >[EMAIL PROTECTED] 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. [EMAIL PROTECTED]( 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.- Hide quoted text - > > - Show quoted text -
I know of two examples. Thread starting, and event binding in a framework GUI. Of course, not too much farther along, for X in A as C, storing the code block and/or for loop "object" as a object in "C", and likewise for if. These met with disfavor in another place. start_new_thread( codeblock as target, args= () ): normal_suite() bind( "<Key>", codeblock as A ): handle_event( event ) But where does 'event' come from? mybind( "<Key>", codeblock as A )( event ): handle_event( event ) ? -- http://mail.python.org/mailman/listinfo/python-list
