Fix https://bugs.mysql.com/bug.php?id=99106 - Django 3 backend support

Author: ManZzup

lib/mysql/connector/django/base.py

@@ -55,8 +55,9 @@
 from django.db.backends import utils as backend_utils
 from django.db.backends.base.base import BaseDatabaseWrapper
 from django.db.backends.signals import connection_created
-from django.utils import (six, timezone, dateparse)
+from django.utils import (timezone, dateparse)
 from django.conf import settings
+import six
 
 from mysql.connector.django.client import DatabaseClient
 from mysql.connector.django.creation import DatabaseCreation

lib/mysql/connector/django/compiler.py

@@ -3,7 +3,7 @@
 
 import django
 from django.db.models.sql import compiler
-from django.utils.six.moves import zip_longest
+from six.moves import zip_longest
 
 
 class SQLCompiler(compiler.SQLCompiler):

lib/mysql/connector/django/features.py

@@ -3,7 +3,7 @@
 import django
 from django.db.backends.base.features import BaseDatabaseFeatures
 from django.utils.functional import cached_property
-from django.utils import six
+import six
 
 try:
     import pytz

lib/mysql/connector/django/operations.py

@@ -7,8 +7,9 @@
 import django
 from django.conf import settings
 from django.db.backends.base.operations import BaseDatabaseOperations
-from django.utils import six, timezone
+from django.utils import timezone
 from django.utils.encoding import force_text
+import six
 
 try:
     from _mysql_connector import datetime_to_mysql, time_to_mysql