[http-client-python] add pyproject toml

[swathipil]

fix #7975
Changes to http-client-python:

• Automatically generate with pyproject.toml instead of setup.py
• Added an additional emitter option keep-setup-py to keep the existing setup.py. The basic-setup-py option can continue to be used to generate a basic setup.py file.

[github-actions]

All changed packages have been documented.

• ✅ @typespec/http-client-python

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@typespec/http-client-python - feature ✏️

Adding pyproject.toml generation and optional keep-setup-py flag

[azure-sdk]

You can try these changes here

🛝 Playground	🌐 Website	🛝 VSCode Extension

[Copilot]

Pull Request Overview

This PR replaces setup.py with a pyproject.toml-based build for the Python HTTP client generator, adds a corresponding template and retention logic, and updates related packaging dependencies.

• Added pyproject.toml.jinja2 template and support in the serializer
• Updated serializer to remove setup.py, retain existing pyproject.toml fields, and manage version comparisons
• Adjusted package.json to include new dependencies for Python client generation

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/http-client-python/package.json	Added new dependencies and reordered existing ones for Python codegen
generator/pygen/codegen/templates/.../pyproject.toml.jinja2	Introduced pyproject.toml template for packaging
generator/pygen/codegen/serializers/general_serializer.py	Added methods to extract and retain pyproject.toml fields, removed setup.py code paths
generator/pygen/codegen/serializers/init.py	Swapped out setup.py.jinja2 for pyproject.toml.jinja2, updated regeneration logic
generator/pygen/init.py	Added remove_file helper to delete setup.py
cspell.yaml	Added pytyped to the spelling dictionary

Files not reviewed (1)

• packages/http-client-python/package-lock.json: Language not supported

Comments suppressed due to low confidence (2)

packages/http-client-python/generator/pygen/codegen/serializers/general_serializer.py:63

• The logic for retaining existing pyproject.toml fields isn't covered by tests. Add unit tests for _keep_pyproject_fields to ensure dependencies and build-tool settings are correctly preserved.

    def _keep_pyproject_fields(self, file_path: str) -> dict:

packages/http-client-python/generator/pygen/codegen/templates/packaging_templates/pyproject.toml.jinja2:86

• There is no newline between the closing {% endif %} and the readme line, which will produce invalid TOML. Add a line break so readme = ... appears on its own line.

{% endif %}readme = {file = ["README.md"], content-type = "text/markdown"}

[msyyc]

@iscai-msft PR approved. Please hold on release for typespec-python if after the PR merged since I need some time to adjust the generation scripts of SDK repo.