List type annotations leads to syntax error

[lmazuel]

I used the latest Python TypeSpec emitter on this tsplocation:

directory: specification/purview/data-plane/datamap
commit: 0c932f4a1e126784161397209484678f3adda2f6
repo: Azure/azure-rest-api-specs
additionalDirectories: 

I get annotation using list, so the code is not valid:

azure/purview/datamap/__init__.py:15: in <module>
    from ._client import DataMapClient  # type: ignore
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
azure/purview/datamap/_client.py:19: in <module>
    from .operations import (
azure/purview/datamap/operations/__init__.py:15: in <module>
    from ._operations import EntityOperations  # type: ignore
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
azure/purview/datamap/operations/_operations.py:30: in <module>
    from .. import models as _models
azure/purview/datamap/models/__init__.py:16: in <module>
    from ._models import (  # type: ignore
azure/purview/datamap/models/_models.py:496: in <module>
    class AtlasClassifications(_Model):
azure/purview/datamap/models/_models.py:514: in AtlasClassifications
    list: Optional[list[Any]] = rest_field(visibility=["read", "create", "update", "delete", "query"])
                   ^^^^^^^^^
E   TypeError: '_RestField' object is not subscriptable

Either we import "from future import annotation", or we use List. I think I prefer to import future annotations, since it's more oriented to the future.

I'm using Python 3.12.3, so totally recent runtime.

[msyyc]

We ever fixed a similar bug that an operation is named "list"

typespec/packages/http-client-python/generator/pygen/codegen/models/list_type.py

Lines 44 to 46 in dd8b601

	# if there is a function named `list` we have to make sure there's no conflict with the built-in `list`
	list_type = "List" if self.code_model.has_operation_named_list and kwargs.get("is_operation_file") else "list"
	return f"{list_type}[{self.element_type.type_annotation(**kwargs)}]"

. And this issue is about model property so we could add similar logic to fix it.

[msyyc]

fix the bug for emitter in #9256 and add spector case in #9259 to cover this scenario.