executing while loop and simultaneously redirecting to new page on form submission

Hello everyone,

I've been using cherrypy on a Raspberry Pi to run a web controllable LED 
matrix.  I've run into a bit of a wall.  Short version of question: Is it 
possible to send the user to a new webpage in a function WITHOUT returning 
or breaking?  I am trying to execute code in a block below the redirect. 

Long version:

The LED control code executes on a while loop after receiving input from an 
an HTML form like the following:

    <form name="myform" class="rounded" action="ledDisplay" method="GET" 
onsubmit="archive.html">         
        <input type="text" class="box" name="message" maxlength="1000" 
placeholder="enter your message" />
        <input type="submit">
    </form>

The ledDisplay function executes the while loop with the message from the 
form.  My problem is this--after submission, I would like to redirect the 
user to a new webpage (e..g, "thanks.html").  However, when I redirect it 
either executes BEFORE the while loop, thus preventing the LED from 
running, or executes AFTER the while loop, i.e., never.  

Does anyone know if there is a way to get CherryPy to send the user to a 
new webpage and then continue to execute a code block?  Here is a skeleton 
of the code I'm working with:

class myApp:

def index(self):

return open('index.html')

index.exposed = True

def ledDisplay(self, message):


if message:

raise cherrypy.HTTPRedirect("thanks.html") /* This prevents the loop from 
executing.  Any way to open the page and still execute the loop*/

 

while True:

                               //Execute LED code on loop.
Apologies if I'm being obtuse - I am new to programming. 

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