Refs #23919 -- Removed six.<various>_types usage

Thanks Tim Graham and Simon Charette for the reviews.

1 files changed, 2 insertions, 2 deletions

diff --git a/django/core/serializers/python.py b/django/core/serializers/python.py
index a0cea14297..9db5c2e6a6 100644
--- a/django/core/serializers/python.py
+++ b/django/core/serializers/python.py
@@ -131,7 +131,7 @@ def Deserializer(object_list, **options):
                 model = field.remote_field.model
                 if hasattr(model._default_manager, 'get_by_natural_key'):
                     def m2m_convert(value):
-                        if hasattr(value, '__iter__') and not isinstance(value, six.text_type):
+                        if hasattr(value, '__iter__') and not isinstance(value, str):
                             return model._default_manager.db_manager(db).get_by_natural_key(*value).pk
                         else:
                             return force_text(model._meta.pk.to_python(value), strings_only=True)
@@ -154,7 +154,7 @@ def Deserializer(object_list, **options):
                         default_manager = model._default_manager
                         field_name = field.remote_field.field_name
                         if hasattr(default_manager, 'get_by_natural_key'):
-                            if hasattr(field_value, '__iter__') and not isinstance(field_value, six.text_type):
+                            if hasattr(field_value, '__iter__') and not isinstance(field_value, str):
                                 obj = default_manager.db_manager(db).get_by_natural_key(*field_value)
                                 value = getattr(obj, field.remote_field.field_name)
                                 # If this is a natural foreign key to an object that