<form action="" method="GET" id="selection-form">
                  {% csrf_token %}
                    <select id="member_list">
                            {% for user in user %}
                        <option value="{{user.pk }} }}">
                            {{ user.username }}
                        </option>
                            {% endfor %}
                    </select>
                     <input type="button" value="Add member" id="selection-button">
                     </form>
                    <div id="res"> </div>

def member_select(request):
    selection = request.GET.get('id',None)
    if selection:
        data = serializers.serialize('json',User.objects.filter(pk=selection))
    else:
        data = {}
    return HttpResponse(data, content_type='application/json')