Refs #23919 -- Removed most of remaining six usage

Thanks Tim Graham for the review.

3 files changed, 3 insertions, 16 deletions

diff --git a/django/core/cache/backends/db.py b/django/core/cache/backends/db.py
index ad805324bd..97f307e24d 100644
--- a/django/core/cache/backends/db.py
+++ b/django/core/cache/backends/db.py
@@ -1,5 +1,6 @@
 "Database cache backend."
 import base64
+import pickle
 from datetime import datetime
 
 from django.conf import settings
@@ -8,11 +9,6 @@ from django.db import DatabaseError, connections, models, router, transaction
 from django.utils import timezone
 from django.utils.encoding import force_bytes
 
-try:
-    from django.utils.six.moves import cPickle as pickle
-except ImportError:
-    import pickle
-
 
 class Options(object):
     """A class that will quack like a Django model _meta class.
diff --git a/django/core/cache/backends/filebased.py b/django/core/cache/backends/filebased.py
index 7c2c5c7edb..88509ed8de 100644
--- a/django/core/cache/backends/filebased.py
+++ b/django/core/cache/backends/filebased.py
@@ -4,6 +4,7 @@ import glob
 import hashlib
 import io
 import os
+import pickle
 import random
 import tempfile
 import time
@@ -13,11 +14,6 @@ from django.core.cache.backends.base import DEFAULT_TIMEOUT, BaseCache
 from django.core.files.move import file_move_safe
 from django.utils.encoding import force_bytes
 
-try:
-    from django.utils.six.moves import cPickle as pickle
-except ImportError:
-    import pickle
-
 
 class FileBasedCache(BaseCache):
     cache_suffix = '.djcache'
diff --git a/django/core/cache/backends/locmem.py b/django/core/cache/backends/locmem.py
index 8916ad176c..cf86dcaa0c 100644
--- a/django/core/cache/backends/locmem.py
+++ b/django/core/cache/backends/locmem.py
@@ -1,17 +1,12 @@
 "Thread-safe in-memory cache backend."
 
+import pickle
 import time
 from contextlib import contextmanager
 
 from django.core.cache.backends.base import DEFAULT_TIMEOUT, BaseCache
 from django.utils.synch import RWLock
 
-try:
-    from django.utils.six.moves import cPickle as pickle
-except ImportError:
-    import pickle
-
-
 # Global in-memory store of cache data. Keyed by name, to provide
 # multiple named local memory caches.
 _caches = {}