Housekeeping: format, lint & typecheck

pyproject.toml

@@ -37,14 +37,12 @@ mkdocs = "^1.5.3"
 mkdocstrings = {extras = ["python"], version = "^0.23.0"}
 mkdocs-material = "^9.4.8"
 
-
 [tool.poetry.group.gui.dependencies]
 flet = "^0.11.0"
 psutil = "^5.9.6"
+types-psutil = "^5.9.5.17"
 bidict = "^0.22.1"
 
-
-
 [tool.poetry.scripts]
 node_deployer = "node_deployer.__main__:main"
 debug_node_deployer = "node_deployer.__main__:debug"
@@ -54,6 +52,17 @@ build_docs = "scripts.docs:main"
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
 
+[tool.mypy]
+check_untyped_defs = true
+
+[[tool.mypy.overrides]]
+module="flet.*"
+ignore_missing_imports = true
+
+[[tool.mypy.overrides]]
+module="flet_core.*"
+ignore_missing_imports = true
+
 [tool.black]
 line-length = 100
 

src/node_deployer_gui/disk_dropdown.py

@@ -21,7 +21,7 @@ def disk_dropdown(**kwargs) -> Tuple[ft.Dropdown, ft.Row]:
         **kwargs,
     )
 
-    def refresh_dropdown(_):
+    def refresh_dropdown(*_) -> None:
         dropdown.options = get_disk_options()
         dropdown.update()
 

src/node_deployer_gui/gui.py

@@ -28,7 +28,7 @@ def main(page: ft.Page) -> None:
     swarm_token = ft.TextField(label="Swarm Token", text_align=ft.TextAlign.LEFT)
 
     # This wrapper validates the value of the field before passing it to the function
-    def validate_value(func):
+    def validate_value(func: Callable) -> Callable:
         @wraps(func)
         def wrapped():
             out = func()
@@ -79,7 +79,7 @@ def main(page: ft.Page) -> None:
     )
 
     # This button triggers the confirmation popup before calling the disk creation function
-    def confirm_disk_creation(_):
+    def confirm_disk_creation(*_):
         # Fetch the values of the fields
         disk_val: str = field_fetch_map[disk]()
         hostname_val: str = field_fetch_map[hostname]()
@@ -92,12 +92,12 @@ def main(page: ft.Page) -> None:
         # Also: nested closures, eww. It feels dirty, but maintains the functional style
         # and most of its benefits. I'm tempting the functional gods to punish me with
         # side-effects here though...
-        def close_dlg(_):
+        def close_dlg(*_) -> None:
             dlg.open = False
             page.update()
 
         # This closure is called when the confirm disk creation button is pressed
-        def trigger_disk_creation(_):
+        def trigger_disk_creation(*_) -> None:
             dlg.title = None
             dlg.content = ft.Row(
                 controls=[