error due to field name matching enum name

[jgunstone]

Describe the bug
generated pydantic code is faulty when the field name matches the generated enum name for a given field.

To Reproduce

Example schema:

{
    "properties": {
        "a_int": {
            "default": 1,
            "section": "numeric",
            "title": "A Int",
            "type": "integer"
        },
        "DEnum": {
            "enum": [
                "yellow",
                "red",
                "violet"
            ],
            "type": "string",
            "default": "yellow",
            "description": "pick colour"
        }
    },
    "required": [
        "DEnum"
    ],
    "title": "Test",
    "type": "object"
}

Used commandline:

$ datamodel-codegen  --input test.json --input-file-type jsonschema --output model.py

generates model.py:

# generated by datamodel-codegen:
#   filename:  test.json
#   timestamp: 2024-09-19T14:16:11+00:00

from __future__ import annotations

from enum import Enum
from typing import Optional

from pydantic import BaseModel, Field


class DEnum(Enum):
    yellow = 'yellow'
    red = 'red'
    violet = 'violet'


class Test(BaseModel):
    a_int: Optional[int] = Field(1, title='A Int')
    DEnum: DEnum = Field(..., description='pick colour')

then when try to use this file you get an error:

python 
Python 3.12.3 | packaged by conda-forge | (main, Apr 15 2024, 18:38:13) [GCC 12.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from model import Test
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/jovyan/xlsxdatagrid/tests/model.py", line 19, in <module>
    class Test(BaseModel):
  File "/home/jovyan/miniforge3/envs/xlsxdatagrid-dev/lib/python3.12/site-packages/pydantic/_internal/_model_construction.py", line 197, in __new__
    set_model_fields(cls, bases, config_wrapper, types_namespace)
  File "/home/jovyan/miniforge3/envs/xlsxdatagrid-dev/lib/python3.12/site-packages/pydantic/_internal/_model_construction.py", line 474, in set_model_fields
    fields, class_vars = collect_model_fields(cls, bases, config_wrapper, types_namespace, typevars_map=typevars_map)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jovyan/miniforge3/envs/xlsxdatagrid-dev/lib/python3.12/site-packages/pydantic/_internal/_fields.py", line 229, in collect_model_fields
    field_info = FieldInfo.from_annotated_attribute(ann_type, default)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jovyan/miniforge3/envs/xlsxdatagrid-dev/lib/python3.12/site-packages/pydantic/fields.py", line 351, in from_annotated_attribute
    raise PydanticUserError(
pydantic.errors.PydanticUserError: Error when building FieldInfo from annotated attribute. Make sure you don't have any field name clashing with a type annotation 

For further information visit https://errors.pydantic.dev/2.7/u/unevaluable-type-annotation
>>> 

Expected behavior

The issue seems to be because of the name and field name overlap of DEnum.
It would be great if it was smart enough not to let that happen... or else allow the user an argument to append some text onto Enum names or add a variable to the jsonschema that sets the enum name.

Version:

• OS: [e.g. iOS] Ubuntu2204
• Python version: 3.12.3
• datamodel-code-generator version: 0.25.6

Additional context

If you can suggest workarounds that would also be appreciated

Aside

the default value also doesn't appear to be coming through