How to execute a python function based on a selection of a Drop down list in HTML?

HTML:

 <div class="iq-custom-select d-inline-block sea-epi s-margin">
      <select name="cars" class="form-control season-select">
         <option value="season1">Season 1</option>
         <option value="season2">Season 2</option>
         <option value="season3">Season 3</option>
         <option value="season4">Season 4</option>
         <option value="season5">Season 5</option>
      </select>
   </div>

And this is my Pyghon method I really do not know how it should be written.

DJANGO:

def single_show(request, pk):
    show = get_object_or_404 (Show, pk=pk)
    episode_s1 = Episode.objects.filter(series=pk,season=1).order_by("episode_number")
    episode_s2 = Episode.objects.filter(series=pk,season=2).order_by("episode_number")
    episode_s3 = Episode.objects.filter(series=pk,season=3).order_by("episode_number")
    episode_s4 = Episode.objects.filter(series=pk,season=4).order_by("episode_number")
    episode_s5 = Episode.objects.filter(series=pk,season=5).order_by("episode_number")
    return render(request, "listings/single_show.html",{
        'show' : show,
        'episode_s1' : episode_s1,
        'episode_s2' : episode_s2,
        'episode_s3' : episode_s3,
        'episode_s4' : episode_s4,
        'episode_s5' : episode_s5,
    })

I have a dropdown made in html and when I select a value I want to show my episodes

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