make file improvements and some pylint cleanup

Makefile

@@ -1,10 +1,11 @@
 # Needs python3 >= 3.9, sed, git for build, docker for tests
+.PHONY: build
 build: clean
 	python3 -m pip install -r requirements.txt --no-compile --target build
 	cp -r mail4one/ build/
 	sed -i "s/DEVELOMENT/$(shell scripts/get_version.sh)/" build/mail4one/version.py
 	find build -name "*.pyi" -o -name "py.typed" | xargs -I typefile rm typefile
-	rm -rf build/bin
+	rm -rf build/bin build/aiosmtpd/{docs,tests,qa}
 	rm -rf build/mail4one/__pycache__
 	rm -rf build/*.dist-info
 	python3 -m zipapp \
@@ -13,10 +14,12 @@ build: clean
 		--main mail4one.server:main \
 		--compress build
 
+.PHONY: clean
 clean:
 	rm -rf build
 	rm -rf mail4one.pyz
 
+.PHONY: docker-tests
 docker-tests:
 	docker run --pull=always -v `pwd`:/app -w /app --rm python:3.11-alpine sh scripts/runtests.sh
 	docker run --pull=always -v `pwd`:/app -w /app --rm python:3.10-alpine sh scripts/runtests.sh
@@ -31,24 +34,31 @@ docker-tests:
 requirements.txt: Pipfile.lock
 	pipenv requirements > requirements.txt
 
+.PHONY: format
 format:
 	black mail4one/*py tests/*py
 
+.PHONY: build-dev
 build-dev: requirements.txt build
 
+.PHONY: setup
 setup:
 	pipenv install
 
+.PHONY: cleanup
 cleanup:
 	pipenv --rm
 
+.PHONY: update
 update:
 	rm requirements.txt Pipfile.lock
 	pipenv update
 	pipenv requirements > requirements.txt
 
+.PHONY: shell
 shell:
-	MYPYPATH=`pipenv --venv`/lib/python3.11/site-packages pipenv shell
+	MYPYPATH=$(shell ls -d `pipenv --venv`/lib/python3*/site-packages) pipenv shell
 	
+.PHONY: test
 test:
 	pipenv run python -m unittest discover