Fix django 4 compat

README.rst

@@ -4,6 +4,9 @@ django-autofixture
 
 |build| |package|
 
+*** Compatible with Django version 2.X
+
+
 This app aims to provide a simple way of loading masses of randomly generated
 test data into your development database. You can use a management command to
 load test data through command line.

autofixture/base.py

@@ -407,7 +407,11 @@ def process_field(self, instance, field):
         value = self.get_value(field)
         if value is self.IGNORE_FIELD:
             return
-        setattr(instance, field.name, value)
+        elif isinstance(field, related.ManyToManyField):
+            instance.save()
+            getattr(instance, field.name).set(value)
+        else:
+            setattr(instance, field.name, value)
 
     def process_m2m(self, instance, field):
         # check django's version number to determine how intermediary models

autofixture/signals.py

@@ -2,4 +2,4 @@
 from django.dispatch import Signal
 
 
-instance_created = Signal(providing_args=['model', 'instance', 'committed'])
+instance_created = Signal()