Adding styling tools

Author: keelerm84

Makefile

@@ -31,7 +31,9 @@ test: install
 .PHONY: lint
 lint: #! Run type analysis and linting checks
 lint: install
-	poetry run mypy ld_eventsource
+	@poetry run mypy ld_eventsource
+	@poetry run isort --check --atomic ld_eventsource contract-tests
+	@poetry run pycodestyle ld_eventsource contract-tests
 
 #
 # Documentation generation

pyproject.toml

@@ -35,6 +35,8 @@ urllib3 = ">=1.26.0,<3"
 mock = ">=2.0.0"
 pytest = ">=2.8"
 mypy = "^1.4.0"
+pycodestyle = "^2.12.1"
+isort = "^5.13.2"
 
 
 [tool.poetry.group.contract-tests]