fix UserManager

core/models.py

@@ -17,7 +17,7 @@ class MyUserManager(BaseUserManager):
     def create_superuser(self, email, password=None, **extra_fields):
         extra_fields.setdefault('is_staff', True)
         extra_fields.setdefault('is_superuser', True)
-        email = self.normalize_email(email)
+
         if extra_fields.get('is_staff') is not True:
             raise ValueError(_('Superuser must have is_staff=True.'))
         if extra_fields.get('is_superuser') is not True:
@@ -35,7 +35,7 @@ class MyUser(AbstractBaseUser, PermissionsMixin):
     
     objects = MyUserManager()
     USERNAME_FIELD = 'username'
-    REQUIRED_FIELDS = []
+    REQUIRED_FIELDS = ['email']
 
     def __str__(self):
         return self.email