Update market_calendar.py #41

	name: test_runner
	on:
	pull_request:
	branches: [ dev ]
	workflow_call:
	workflow_dispatch:

	jobs:
	run_tests:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	os: [ ubuntu-latest, windows-latest, macos-latest ]
	python-version: [ '3.9', '3.10', '3.11', '3.12']

	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install pytest coveralls black===24.1.1
	pip install .

	- name: ensure black format
	run: python -m black --check pandas_market_calendars tests

	- name: run tests
	run: \|
	coverage run --source=pandas_market_calendars -m pytest tests
	coverage lcov -o coverage.lcov

	- name: coveralls parallel
	uses: coverallsapp/github-action@master
	with:
	github-token: ${{ secrets.github_token }}
	flag-name: test_${{matrix.os}}_${{matrix.python-version}}
	parallel: true
	path-to-lcov: coverage.lcov

	report_coverage:
	if: ${{ always() }}
	needs: run_tests
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: coveralls finalize
	id: coveralls_finalize
	uses: coverallsapp/github-action@master
	with:
	github-token: ${{secrets.github_token}}
	parallel-finished: true
	path-to-lcov: coverage.lcov

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