Use mark_safe to render input

src/core/forms.py

@@ -1,30 +1,33 @@
 from django import forms
+from django.utils.safestring import mark_safe
 
 from .models import Exhibit
 
 
 class UploadFileForm(forms.Form):
     file = forms.ImageField(required=False)
 
+
 class ListTextWidget(forms.TextInput):
     def __init__(self, *args, **kwargs):
         super(ListTextWidget, self).__init__(*args, **kwargs)
-        self._name = 'exhibit-list'
-        self._list = Exhibit.objects.all().order_by('name')
-        self.attrs.update({'list':f'list__{self._name}'})
+        self._name = "exhibit-list"
+        self._list = Exhibit.objects.all().order_by("name")
+        self.attrs.update({"list": f"list__{self._name}"})
 
     def render(self, name, value, attrs=None, renderer=None):
         text_html = super(ListTextWidget, self).render(name, value, attrs=attrs)
         data_list = f'<datalist id="list__{self._name}">'
         for item in self._list:
             data_list += f'<option value="{item.slug}">{item.name}</option>'
-        data_list += '</datalist>'
-        return (text_html + data_list)
+        data_list += "</datalist>"
+        return mark_safe(text_html + data_list)
+
 
 class ExhibitForm(forms.Form):
-   exhibit = forms.CharField(required=True)
+    exhibit = forms.CharField(required=True)
 
-   def __init__(self, *args, **kwargs):
+    def __init__(self, *args, **kwargs):
         super(ExhibitForm, self).__init__(*args, **kwargs)
-        self.fields['exhibit'].widget = ListTextWidget()
-        self.fields['exhibit'].label = ""
+        self.fields["exhibit"].widget = ListTextWidget()
+        self.fields["exhibit"].label = ""

src/core/jinja2/core/exhibit_select.jinja2

@@ -16,7 +16,7 @@
             <h2>{{_("Choose the Exhibition you're seeing")}}</h2>
             <form name="exhibit-form" action="{{url('exhibit_select')}}" method="post" autocomplete="off">
                 {{ csrf_input }}
-                {{form}}
+                {{ form }}
                 <input class="submit-btn" type="submit" value="{{ _('Submit') }}"/>
             </form>
         </div>

src/users/views.py

@@ -1,4 +1,3 @@
-import json
 import logging
 
 from django.conf import settings
@@ -12,7 +11,7 @@
 from django.contrib.auth.views import PasswordResetView
 from django.contrib.messages.views import SuccessMessageMixin
 from django.http import Http404, JsonResponse
-from django.shortcuts import get_object_or_404, redirect, render
+from django.shortcuts import redirect, render
 from django.urls import reverse_lazy
 from django.utils.translation import gettext_lazy as _
 from django.views.decorators.cache import cache_page