Fixed #34542 -- Made createsuperuser handle required blank fields in non-interactive mode.

django/contrib/auth/management/commands/createsuperuser.py

@@ -219,11 +219,15 @@ class Command(BaseCommand):
                 for field_name in self.UserModel.REQUIRED_FIELDS:
                     env_var = "DJANGO_SUPERUSER_" + field_name.upper()
                     value = options[field_name] or os.environ.get(env_var)
+                    field = self.UserModel._meta.get_field(field_name)
                     if not value:
+                        if field.blank and (
+                            options[field_name] == "" or os.environ.get(env_var) == ""
+                        ):
+                            continue
                         raise CommandError(
                             "You must use --%s with --noinput." % field_name
                         )
-                    field = self.UserModel._meta.get_field(field_name)
                     user_data[field_name] = field.clean(value, None)
                     if field.many_to_many and isinstance(user_data[field_name], str):
                         user_data[field_name] = [

tests/auth_tests/test_management.py

@@ -968,6 +968,36 @@ class CreatesuperuserManagementCommandTestCase(TestCase):
                 stderr=new_io,
             )
 
+    def test_blank_email_allowed_non_interactive(self):
+        new_io = StringIO()
+
+        call_command(
+            "createsuperuser",
+            email="",
+            username="joe",
+            interactive=False,
+            stdout=new_io,
+            stderr=new_io,
+        )
+        self.assertEqual(new_io.getvalue().strip(), "Superuser created successfully.")
+        u = User.objects.get(username="joe")
+        self.assertEqual(u.email, "")
+
+    @mock.patch.dict(os.environ, {"DJANGO_SUPERUSER_EMAIL": ""})
+    def test_blank_email_allowed_non_interactive_environment_variable(self):
+        new_io = StringIO()
+
+        call_command(
+            "createsuperuser",
+            username="joe",
+            interactive=False,
+            stdout=new_io,
+            stderr=new_io,
+        )
+        self.assertEqual(new_io.getvalue().strip(), "Superuser created successfully.")
+        u = User.objects.get(username="joe")
+        self.assertEqual(u.email, "")
+
     def test_password_validation_bypass(self):
         """
         Password validation can be bypassed by entering 'y' at the prompt.