refactor: solve the inconsistency of credentials refresh #84

	name: Python CI

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]
	defaults:
	run:
	shell: bash
	working-directory: python
	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.7, 3.8, 3.9]

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: pip install alibabacloud-tea coverage pytest alibabacloud-tea-util alibabacloud_credentials alibabacloud_openapi_util alibabacloud_gateway_spi alibabacloud_tea_xml httpretty
	- name: Test with unittest
	run: \|
	coverage run --source="./alibabacloud_tea_openapi" -m pytest tests/test_*

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