Start linting with mypy

tools/Makefile

@@ -4,8 +4,9 @@ include python.mk
 
 PIP_INSTALL := -r requirements-dev.txt
 PYLINT_ARG := tools
+MYPY_ARG := .
 PYTEST_ARG := .
 
-lint: .pylint
+lint: .pylint .mypy
 test: .pytest
 clean: .clean

tools/python.mk

@@ -5,6 +5,7 @@ CPU_CORES := $(shell nproc)
 
 # PIP_INSTALL := --editable .[dev]
 # PYLINT_ARG :=
+# MYPY_ARG :=
 # PYTEST_ARG :=
 
 VENV := venv
@@ -19,6 +20,11 @@ $(VENV):
 	source $(VENV)/bin/activate
 	pylint --output-format=colorized $(PYLINT_ARG) || true
 
+.PHONY: .mypy
+.mypy: $(VENV)
+	source $(VENV)/bin/activate
+	mypy $(MYPY_ARG) || true
+
 .PHONY: .pytest
 .pytest: $(VENV)
 	source venv/bin/activate

tools/requirements-dev.txt

@@ -1,3 +1,4 @@
+mypy
 pylint
 pytest
 pytest-xdist