How to run python function from javascript?

Question

I have a problem in calling my python function from my javascript file.

I'm using a simple server with python3 -m http.server, so no actual backend..my javascripts are in the front end.

I have a python file called write.py it has a function that I want to execute from my javascript file

write.py file:

def save_vit(text,name):
    f = open(name + ".xml", "w+")
    f.write(text)
    f.close()

the javascript part that i have tried:(but didn't work)

$.ajax({
        type: "POST",
        url: "write.py",
        data: { text: xmlDoc,name: name}});

xmlDoc is a string that has an xml document.

name is a variable that has the name of the file for the python function.

So my question is, what am I missing to call write.py from my js file or how to call it if this approach is wrong?

You cannot do it like that. I suggest to use a micro web framework in python like Flask. Then you can relate directories to run codes and functions. — aminrd
– aminrd, Commented Jan 7, 2020 at 18:25
Does this answer your question? Call Python function from JavaScript code — Robert Moskal
– Robert Moskal, Commented Jan 7, 2020 at 18:36
@RobertMoskal i have seen it before i post this question, my problem is a bit different. — Abdel-Rahman
– Abdel-Rahman, Commented Jan 7, 2020 at 18:41

Sebastián Espinosa · Accepted Answer · 2020-01-07 22:00:15Z

2

You are using http.server to serve the content of a folder, as files, not to execute them, so in the best case scenario, http.server will respond with the content of the write.py file instead of executing it.

You need to create a webserver that has a endpoint where the code of write.py is integrated.

answered Jan 7, 2020 at 22:00

Sebastián Espinosa

2,13314 silver badges23 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

alex067 · Accepted Answer · 2020-01-07 18:31:31Z

1

You can't send a POST http request to run a python script.

You need to have the python script running on a server, that is able to take restful API calls, to run the script and return a value.

For example, you can run a small flask app that takes in your POST route, which runs a script and returns the value of the script back to the client that accessed the POST route.

answered Jan 7, 2020 at 18:31

alex067

3,3211 gold badge14 silver badges19 bronze badges

5 Comments

Abdel-Rahman Over a year ago

so, there is no any simpler way to do it without having another server that has my python function on it?

Ulysse BN Over a year ago

the restful part of your answer is not necessary at all. You just need to send an http request.

alex067 Over a year ago

@Abdel-RahmanEl-Feraly you need to have a server or some micro framework that is able to handle http requests. A python script alone cant interpret a POST request, which is why I recommend flask since its lightweight and easy to setup

Abdel-Rahman Over a year ago

i know a server or micro framework would solve it, but i wanted a way(if possible and exist) that solves it without having an actual backend to call the python function @alex067

alex067 Over a year ago

There are several ways to communicate with services & micro services, and the most common is via api calls, which require a framework able to handle http requests. The other method is via messaging, but this is way too complex for something like this. Basically you would send messages to a message broker, and your python script needs to be able to fetch the message.

Mike Robinson · Accepted Answer · 2020-01-07 18:32:53Z

1

Python is running on the server side ... JavaScript is running on the client side.

So, the only way for JavaScript to ask for a Python routine to be run is through an asynchronous AJAX request which you will have to build.

answered Jan 7, 2020 at 18:32

Mike Robinson

9,0516 gold badges33 silver badges50 bronze badges

1 Comment

Abdel-Rahman Over a year ago

the problem is, i'm not using an actual Python backend..i created python server using this line only "python3 -m http.server" , the python file i want to call, is in the directory where i used this line "python3 -m http.server"

Collectives™ on Stack Overflow

How to run python function from javascript?

3 Answers 3

Comments

5 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

5 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related