How to make python script server side

Question

I'm trying to make my raspberry PI host a website for control of a system on my house but can't run server side Python

I've tried this in Javascript:

import { exec } from 'child_process';
exec("sudo python /home/pi/Light.py");

It's supposed to run Light.py server side because it contains GPIO instructions for the pi but the PI just sits there doing nothing

Can this answer help you? stackoverflow.com/questions/23450534/… — Sergey Kirienko
– Sergey Kirienko, Commented Apr 15, 2019 at 13:57

brunns · Accepted Answer · 2019-04-15 13:57:31Z

3

Javascript's exec() is not for running anything server side, Python or otherwise.

Probably the easiest way to achieve what you're looking for would be to use a simple Python web framework, such as Flask. You could expose a simple HTTP endpoint doing whatever you need doing, and hit that from Javascript.

answered Apr 15, 2019 at 13:57

brunns

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4 Comments

brunns Over a year ago

How and where is this Javascript being run? child_process looks like a node thing, which would also run server side. How's it being triggered? What happens if you SSH onto your Pi and run sudo python /home/pi/Light.py?

Nathan Johnson Over a year ago

It simply flickers a light for now on testing

brunns Over a year ago

Sorry, I need to be more specific. This Javascript code - where does it run, on your Pi, or on a client machine? How is it triggered? (What it does is unimportant from the point of view of solving your problem.)

brunns Over a year ago

And what happens if you SSH onto your Pi and run sudo python /home/pi/Light.py?

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