feat: improve the synced enforcer like Go casbin #267

	# Copyright 2021 The casbin Authors. All Rights Reserved.

	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at

	# http://www.apache.org/licenses/LICENSE-2.0

	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	name: Python Bindings Test

	on: [push, pull_request]

	jobs:
	build:
	strategy:
	fail-fast: false
	matrix:
	platform: [windows-latest, macos-latest, ubuntu-latest]
	python-version: ["3.8", "3.10"]

	runs-on: ${{ matrix.platform }}

	steps:
	- uses: actions/checkout@v2
	with:
	submodules: true
	- uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Add requirements
	run: python -m pip install --upgrade wheel setuptools

	- name: Build and install
	run: pip install --verbose .

	- name: Test
	run: cd pycasbin/tests && python pycasbin_test_suite.py

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