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Re: Tkinter.event.widget: handler gets name instead of widget.

References <1341782353.2041.136.camel@hatchbox-one> <mailman.1933.1341813557.4697.python-list@python.org> <e903a18d-a348-4ba3-8b0c-2b51bca7dbd6@l32g2000yqc.googlegroups.com>
Date 2012-07-10 08:23 +1000
Subject Re: Tkinter.event.widget: handler gets name instead of widget.
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.1961.1341872621.4697.python-list@python.org> (permalink)

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On Tue, Jul 10, 2012 at 3:49 AM, Rick Johnson
<rantingrickjohnson@gmail.com> wrote:
> ALL event handlers should marked as *event
> handlers* using a prefix. I like to use the prefix "evt". Some people
> prefer other prefixes. In any case, just remember to be consistent.
> Also, event handler names should reflect WHAT event they are
> processing, not some esoteric functionality of the application like
> "pick_record" or "info_profile". However if you like, simply have the
> event handler CALL an outside func/meth. This type of consistency is
> what separates the men from the boys.

Or perhaps it separates the half-elves from the hobgoblins.
Hard-and-fast rules are seldom valid in stylistic questions. There's
nothing wrong with having a prefix like "evt" or "on" or whatever;
there's also nothing wrong with a naming convention of PB_Open_Click
(PB for "PushButton" (which is what that GUI toolkit called them),
Open being what the button does, and Click is the event being handled
- that's the VX-REXX convention). Or having no specific event handler
and going straight to your "pick_record" function; that's fine too,
especially if you have multiple entry-points to that.

Frederic, you'll get a lot of advice on this list, but treat it as
just that - advice. There are very few actual rules; read what people
say and then make your own choices.

ChrisA

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Thread

Re: Tkinter.event.widget: handler gets name instead of widget. Terry Reedy <tjreedy@udel.edu> - 2012-07-09 01:58 -0400
  Re: Tkinter.event.widget: handler gets name instead of widget. Rick Johnson <rantingrickjohnson@gmail.com> - 2012-07-09 10:49 -0700
    Re: Tkinter.event.widget: handler gets name instead of widget. Terry Reedy <tjreedy@udel.edu> - 2012-07-09 15:45 -0400
    Re: Tkinter.event.widget: handler gets name instead of widget. Frederic Rentsch <anthra.norell@bluewin.ch> - 2012-07-09 22:47 +0200
    Re: Tkinter.event.widget: handler gets name instead of widget. Chris Angelico <rosuav@gmail.com> - 2012-07-10 08:23 +1000
    Re: Tkinter.event.widget: handler gets name instead of widget. Frederic Rentsch <anthra.norell@bluewin.ch> - 2012-07-10 12:03 +0200
      Re: Tkinter.event.widget: handler gets name instead of widget. Rick Johnson <rantingrickjohnson@gmail.com> - 2012-07-10 15:11 -0700
        Re: Tkinter.event.widget: handler gets name instead of widget. Rick Johnson <rantingrickjohnson@gmail.com> - 2012-07-10 18:06 -0700
          Re: Tkinter.event.widget: handler gets name instead of widget. Frederic Rentsch <anthra.norell@bluewin.ch> - 2012-07-11 09:59 +0200
        Re: Tkinter.event.widget: handler gets name instead of widget. Frederic Rentsch <anthra.norell@bluewin.ch> - 2012-07-12 20:53 +0200
          Re: Tkinter.event.widget: handler gets name instead of widget. rantingrickjohnson@gmail.com - 2012-07-14 20:10 -0700
            Re: Tkinter.event.widget: handler gets name instead of widget. Frederic Rentsch <anthra.norell@bluewin.ch> - 2012-07-16 12:32 +0200
          Re: Tkinter.event.widget: handler gets name instead of widget. rantingrickjohnson@gmail.com - 2012-07-14 20:10 -0700
        Re: Tkinter.event.widget: handler gets name instead of widget. Peter Otten <__peter__@web.de> - 2012-07-13 09:26 +0200
        Re: Tkinter.event.widget: handler gets name instead of widget. Frederic Rentsch <anthra.norell@bluewin.ch> - 2012-07-13 22:24 +0200
        Re: Tkinter.event.widget: handler gets name instead of widget. Terry Reedy <tjreedy@udel.edu> - 2012-07-13 19:23 -0400
        Re: Tkinter.event.widget: handler gets name instead of widget. Peter Otten <__peter__@web.de> - 2012-07-14 09:47 +0200

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