[Python] Fix object serialization for multipart requests #212

	name: "Python Client: Petstore"

	on:
	pull_request:
	paths:
	- samples/openapi3/client/petstore/python-aiohttp/**
	- samples/openapi3/client/petstore/python/**
	- .github/workflows/samples-python-petstore.yaml

	jobs:
	build:
	name: Test Python client
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version:
	- "3.7"
	- "3.8"
	- "3.9"
	- "3.10"
	- "3.11"
	sample:
	- samples/openapi3/client/petstore/python-aiohttp
	- samples/openapi3/client/petstore/python
	services:
	petstore-api:
	image: swaggerapi/petstore
	ports:
	- 80:8080
	env:
	SWAGGER_HOST: http://petstore.swagger.io
	SWAGGER_BASE_PATH: /v2
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	id: py
	with:
	python-version: ${{ matrix.python-version }}

	- name: Cache
	uses: actions/cache@v4
	with:
	key: ${{ runner.os }}-python-${{ steps.py.outputs.python-version }}-
	path: \|
	~/.cache/pypoetry/virtualenvs/
	~/.local/pipx/venvs/poetry/
	.mypy_cache/

	- name: Install poetry
	run: pipx install --python '${{ steps.py.outputs.python-path }}' poetry

	- name: Install
	working-directory: ${{ matrix.sample }}
	run: poetry install

	- name: Test
	working-directory: ${{ matrix.sample }}
	run: poetry run pytest -v

	- name: mypy
	working-directory: ${{ matrix.sample }}
	run: poetry run mypy

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