split one comm node replay functional code into function replaySingle and invoke replaySingle to replay every node in function replayTrace #226

	name: Python Linting

	on: pull_request

	jobs:
	lint-and-format:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout Code
	uses: actions/checkout@v2

	- name: Setup Python Environment
	uses: actions/setup-python@v2
	with:
	python-version: '3.8'

	- name: Install Dependencies
	run: \|
	pip install black

	- name: Run Black
	run: black . --check

	- name: Run tests
	run: \|
	python -m pip install -r requirements.txt
	python -m pip install et_replay/
	python et_replay/tests/test_execution_trace.py

	- name: Validate imports
	run: \|
	python -m pip install fbgemm-gpu
	python -c 'from et_replay import ExecutionTrace'
	python -c 'from et_replay.comm import comms_utils'
	python -c 'from et_replay.tools.validate_trace import TraceValidator'
	python -c 'from et_replay.utils import trace_handler'

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