prevents weird "import from partially initialized module" error.

README.md

@@ -21,8 +21,8 @@ After cloning the repository, create a virtualenv environment, install
 the prerequisites, create the database then run the testsite webapp.
 
 <pre><code>
-    $ virtualenv <em>installTop</em>
-    $ source <em>installTop</em>/bin/activate
+    $ python -m venv .venv
+    $ source .venv/bin/activate
     $ pip install -r testsite/requirements.txt
     $ make vendor-assets-prerequisites
 

extended_templates/backends/eml.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2020, Djaodjin Inc.
+# Copyright (c) 2024, Djaodjin Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -25,7 +25,6 @@
 import codecs, logging, os, warnings
 
 from bs4 import BeautifulSoup
-import django
 from django.core.mail import EmailMultiAlternatives
 from django.template import engines
 from django.utils.html import strip_tags
@@ -140,7 +139,12 @@ def get_template(self, template_name, dirs=_dirs_undefined):
             if dirs is _dirs_undefined:
                 return Template(self.engine.get_template(
                     template_name), engine=self)
-            if django.VERSION[0] >= 1 and django.VERSION[1] >= 8:
+            # We cannot `import django` at toplevel with Django4.2,
+            # as it will create an import loop in the `requests` module
+            # through `premailer`. Don't ask.
+            #pylint:disable=import-outside-toplevel
+            from django import VERSION as DJANGO_VERSION
+            if DJANGO_VERSION[0] >= 1 and DJANGO_VERSION[1] >= 8:
                 warnings.warn(
                     "The dirs argument of get_template is deprecated.",
                     RemovedInDjango110Warning, stacklevel=2)