Drop marshmallow-enum dependency (#384)

Pipfile

@@ -9,8 +9,7 @@ mypy = "*"
 pytest = "6.2.3"
 
 [packages]
-marshmallow = "*"
-marshmallow-enum = "*"
+marshmallow = ">=3.18.0"
 stringcase = "*"
 typing-inspect = "*"
 

dataclasses_json/mm.py

@@ -14,7 +14,6 @@
 from typing_inspect import is_union_type # type: ignore
 
 from marshmallow import fields, Schema, post_load # type: ignore
-from marshmallow_enum import EnumField # type: ignore
 from marshmallow.exceptions import ValidationError # type: ignore
 
 from dataclasses_json.core import (_is_supported_generic, _decode_dataclass,
@@ -253,7 +252,7 @@ def inner(type_, options):
  return TYPES[origin](*args, **options)
 
  if _issubclass_safe(origin, Enum):
- return EnumField(enum=origin, by_value=True, *args, **options)
+ return fields.Enum(enum=origin, by_value=True, *args, **options)
 
  if is_union_type(type_):
  union_types = [a for a in getattr(type_, '__args__', []) if

setup.py

@@ -18,8 +18,7 @@
  keywords='dataclasses json',
  install_requires=[
  'dataclasses;python_version=="3.6"',
- 'marshmallow>=3.3.0,<4.0.0',
- 'marshmallow-enum>=1.5.1,<2.0.0',
+ 'marshmallow>=3.18.0,<4.0.0',
  'typing-inspect>=0.4.0'
  ],
  python_requires='>=3.6',