Refs #23919 -- Removed enum ImportError handling for Python 2.

django/db/migrations/serializer.py

@@ -2,6 +2,7 @@ import builtins
 import collections
 import datetime
 import decimal
+import enum
 import functools
 import math
 import types
@@ -17,12 +18,6 @@ from django.utils.functional import LazyObject, Promise
 from django.utils.timezone import utc
 from django.utils.version import get_docs_version
 
-try:
-    import enum
-except ImportError:
-    # No support on Python 2 if enum34 isn't installed.
-    enum = None
-
 
 class BaseSerializer:
     def __init__(self, value):
@@ -349,7 +344,7 @@ def serializer_factory(value):
         return TupleSerializer(value)
     if isinstance(value, dict):
         return DictionarySerializer(value)
-    if enum and isinstance(value, enum.Enum):
+    if isinstance(value, enum.Enum):
         return EnumSerializer(value)
     if isinstance(value, datetime.datetime):
         return DatetimeSerializer(value)

django/db/migrations/writer.py

@@ -13,12 +13,6 @@ from django.utils.inspect import get_func_args
 from django.utils.module_loading import module_dir
 from django.utils.timezone import now
 
-try:
-    import enum
-except ImportError:
-    # No support on Python 2 if enum34 isn't installed.
-    enum = None
-
 
 class SettingsReference(str):
     """