Fix create and delete user commands

program/management/commands/createuser.py

 from django.contrib.auth.models import User
 from django.core.management.base import BaseCommand, CommandError
 
-from optparse import make_option
-
 
 class Command(BaseCommand):
     help = 'creates an user'
-    option_list = BaseCommand.option_list + (
-        make_option('--username', dest='username', default=None, help='Specifies the username.'),
-        make_option('--email', dest='email', default=None, help='Specifies the email address.'),
-    )
+
+    def add_arguments(self, parser):
+        parser.add_argument('--username', action='store', help='Specifies the username.', required=True, type=str)
+        parser.add_argument('--email', action='store', help='Specifies the email address.', required=True, type=str)
 
     def handle(self, *args, **options):
         username = options.get('username', None)
@@ -21,6 +19,6 @@ class Command(BaseCommand):
             User.objects.get(username=username)
         except User.DoesNotExist:
             User.objects.create_user(username=username, email=email)
-            self.stdout.write(self.style.SUCCESS, 'user created successfully.')
+            self.stdout.write(self.style.SUCCESS('user created successfully.'))
         else:
-            self.stdout.write(self.style.NOTICE, 'User already exists, no need to create.')
+            self.stdout.write(self.style.NOTICE('User already exists, no need to create.'))

program/management/commands/deleteuser.py

 from django.contrib.auth.models import User
 from django.core.management.base import BaseCommand, CommandError
 
-from optparse import make_option
-
 
 class Command(BaseCommand):
     help = 'deletes an user'
-    option_list = BaseCommand.option_list + (
-        make_option('--username', dest='username', default=None, help='Specifies the username.'),
-    )
+
+    def add_arguments(self, parser):
+        parser.add_argument('--username', action='store', help='Specifies the username.', required=True, type=str),
 
     def handle(self, *args, **options):
         username = options.get('username', None)
@@ -20,4 +18,4 @@ class Command(BaseCommand):
         except User.DoesNotExist:
             raise 'user does not exist.'
         else:
-            self.stdout.write(self.style.SUCCESS, 'user deleted succesfuly.')
+            self.stdout.write(self.style.SUCCESS('user deleted successfully.'))