index.html

<form method = "POST" action="resultat.html"> {% csrf_token %}
    <select name="entry_to_delete">
        {% for product_name, product_id in history %}
        <option value={{ product_id }}>{{ product_name }}</option>
        {% endfor %}
    </select>
    
    <input type = "submit" value = "Submit"> 

</form>

views.py

from django.shortcuts import render
from django.http import HttpResponse, HttpResponseRedirect
from appli.forms import Formulaire
from appli.models import Exercice
from django.db.models import Q


# Create your views here.

def index(request):
    context = {} 
    context['form'] = Formulaire()
     

    return render( request, 'appli/index.html', context) 


def form_data(request):
    # if this is a POST request we need to process the form data
    if request.method == 'POST':
        # create a form instance and populate it with data from the request:
        form = Formulaire(request.POST)
        # check whether it's valid:
        if 'entry_to_delete' in request.POST:
            # check whether there's a valid object and it's own by the right user.
            # then delete it.

    # if a GET (or any other method) we'll create a blank form
    else:
        form = Formulaire()

    return render(request, 'resultat.html', {'form': form})