Cleanup Django versions

src/bootstrap3/renderers.py

@@ -33,7 +33,7 @@
     render_label,
 )
 from .text import text_value
-from .utils import IS_PRE_DJANGO4, add_css_class, render_template_file
+from .utils import add_css_class, render_template_file
 
 try:
     # If Django is set up without a database, importing this widget gives RuntimeError
@@ -313,18 +313,8 @@ def add_widget_attrs(self):
 
     def list_to_class(self, html, klass):
         classes = add_css_class(klass, self.get_size_class())
-        if IS_PRE_DJANGO4:
-            return self._list_to_class_pre_django4(html, classes)
         return re.sub("\s*<div>\s*<label", f' <div class="{classes}"><label', html)
 
-    def _list_to_class_pre_django4(self, html, classes):
-        return (
-            html.replace("<ul", "<div")
-            .replace("</ul>", "</div>")
-            .replace("<li", f'<div class="{classes}"')
-            .replace("</li>", "</div>")
-        )
-
     def put_inside_label(self, html):
         content = f"{html} {self.label}"
         return render_label(

src/bootstrap3/utils.py

@@ -15,8 +15,6 @@
 from .text import text_value
 
 DJANGO_VERSION = get_version()
-# TODO: Remove after support for Django 3.x ends
-IS_PRE_DJANGO4 = DJANGO_VERSION < "4"
 IS_DJANGO5 = DJANGO_VERSION >= "5"
 
 # RegEx for quoted string

tests/test_templatetags.py

@@ -8,7 +8,6 @@
 from bootstrap3.text import text_concat, text_value
 from bootstrap3.utils import (
     IS_DJANGO5,
-    IS_PRE_DJANGO4,
     add_css_class,
     render_tag,
     url_to_attrs_dict,
@@ -572,11 +571,6 @@ def test_radioset_inline(self):
               </div>
             </div>
             """
-        if IS_PRE_DJANGO4:
-            expected = expected.replace(
-                '<label class="sr-only">Radio</label>',
-                '<label class="sr-only" for="id_radio_0">Radio</label>',
-            )
         self.assertHTMLEqual(res, expected)
         self.assertIn(
             ' <div class="radio">',