Updates for django>=4.0

Author: apoorvaeternity

djxml/xmlmodels/base.py

@@ -9,7 +9,7 @@
 from django.core.exceptions import (ObjectDoesNotExist, FieldError,
                                     MultipleObjectsReturned,)
 from django.db.models.base import subclass_exception
-from django.utils.encoding import force_text
+from django.utils.encoding import force_str
 from django.utils.encoding import smart_bytes, smart_str
 
 from .signals import xmlclass_prepared

djxml/xmlmodels/fields.py

@@ -4,10 +4,7 @@
 from lxml import etree, isoschematron
 
 from django.core.exceptions import ValidationError
-try:
-    from django.utils.encoding import force_text as force_unicode
-except ImportError:
-    from django.utils.encoding import force_unicode
+from django.utils.encoding import force_str as force_unicode
 
 from .descriptors import ImmutableFieldBase, XPathFieldBase, XsltFieldBase
 from .exceptions import XmlSchemaValidationError

djxml/xmlmodels/signals.py

@@ -1,4 +1,5 @@
 from __future__ import absolute_import
 from django.dispatch import Signal
 
-xmlclass_prepared = Signal(providing_args=["class"])
+# Arguments: "class"
+xmlclass_prepared = Signal()