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Date: Wed, 09 Apr 2014 08:53:19 -0500
From: Mark H Harris <harrismh777@gmail.com>
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Subject: Re: "Latching" variables in function
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Xref: csiph.com comp.lang.python:69951

On 4/8/14 3:09 PM, Grawburg wrote:

> I have a N/O pushbutton that I want to "latch" a value to a variable when it's been pressed.
> I need button_value to become '1' when the button is pressed and to remain '1' until ...

> What do I use to 'latch' button_value?

Philosophically speaking buttons don't latch. You push the button, an 
event is generated, and the call-back handles the event to do something 
in your project.

You might try setting a global variable on the button-push event.

Or, if I understand you, you might want to use a configurable, like a 
radio button or a check box, either of which are designed to be "latched".


marcus