Fix duplicate solutions in the final Pareto solution set and address issues with blank Pareto front plots in newer versions of matplotlib. #18

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: build-and-test

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	jobs:
	build:
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, windows-latest]
	python-version: ["3.6"]
	defaults:
	run:
	shell: bash
	runs-on: ${{ matrix.os }}
	timeout-minutes: 30
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	pip install cython setuptools
	pip install -r requirements.txt
	pip install pytest
	- name: Build
	run: python setup.py install
	- name: Test with pytest
	run: \|
	python -m geatpy --version
	pytest

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