How to run a python script inside javascript and refresh the view in django

I have a python script that takes in some data and manipulates it. However i need it to run on the client side inside the javascript to process some data and refresh the view.

The python file that manipulates data works well as I have tested it inside the IDLE shell

 DataManipulation.py

class ModifyData(object):

       #Bunch of functions to manipulate data

below is the function used to render the view with url '.../test' which also works perfectly.

 views.py

  def test(request):

        template = 'app/test.html'

        file = 'documents/Sample.csv' #File  to be loaded 

        args = {'test': file }

        return render(request, template, args)

After loading this page, i use a javascript library that displays the data on the page in a table, the user can then manipulate the data like multiply a column by 3, but where I am stuck is how to take my DataManipulation.py file to modify the data and updates the page with the updated column on a button click