add mypy to the development tools

pyproject.toml

@@ -15,7 +15,8 @@ dynamic = ["version"]
 
 [project.optional-dependencies]
 dev = ["flake8", "flake8-blind-except", "flake8-builtins", "flake8-docstrings", "flake8-executable", "flake8-fixme",
-       "flake8-isort", "flake8-logging-format", "flake8-mutable", "flake8-pyproject", "pip-tools", "setuptools-scm"]
+       "flake8-isort", "flake8-logging-format", "flake8-mutable", "flake8-pyproject", "mypy", "pip-tools",
+       "setuptools-scm"]
 
 [project.scripts]
 visualize-storage = "gp2040ce_bintools.storage:visualize"
@@ -23,5 +24,8 @@ visualize-storage = "gp2040ce_bintools.storage:visualize"
 [tool.flake8]
 max-line-length = 120
 
+[tool.mypy]
+ignore_missing_imports = true
+
 [tool.setuptools_scm]
 write_to = "gp2040ce_bintools/_version.py"

requirements/requirements-dev.txt

@@ -43,6 +43,10 @@ isort==5.12.0
     # via flake8-isort
 mccabe==0.7.0
     # via flake8
+mypy==1.4.0
+    # via gp2040ce-binary-tools (pyproject.toml)
+mypy-extensions==1.0.0
+    # via mypy
 packaging==23.1
     # via
     #   build
@@ -67,9 +71,12 @@ tomli==2.0.1
     # via
     #   build
     #   flake8-pyproject
+    #   mypy
     #   setuptools-scm
 typing-extensions==4.6.3
-    # via setuptools-scm
+    # via
+    #   mypy
+    #   setuptools-scm
 wheel==0.40.0
     # via pip-tools