Add mypy (#95)

Author: hugovk

requirements-mypy.txt

@@ -0,0 +1,3 @@
+mypy==1.17.1
+pygame
+types-tqdm

src/osmviz/manager.py

@@ -45,7 +45,7 @@
 try:
     from tqdm import tqdm
 except ImportError:
-    tqdm = None
+    tqdm = None  # type: ignore[assignment,misc]
 
 
 class ImageManager:
@@ -375,7 +375,7 @@ def create_osm_image(self, bounds, zoom):
         self.manager.prepare_image(pix_width, pix_height)
         total = (1 + max_x - min_x) * (1 + max_y - min_y)
 
-        if tqdm:
+        if tqdm:  # type: ignore[truthy-function]
             pbar = tqdm(desc="Fetching tiles", total=total, unit="tile")
         else:
             print(f"Fetching {total} tiles...")
@@ -386,9 +386,9 @@ def create_osm_image(self, bounds, zoom):
                 x_off = self.tile_size * (x - min_x)
                 y_off = self.tile_size * (y - min_y)
                 self.manager.paste_image_file(f_name, (x_off, y_off))
-                if tqdm:
+                if tqdm:  # type: ignore[truthy-function]
                     pbar.update()
-        if tqdm:
+        if tqdm:  # type: ignore[truthy-function]
             pbar.close()
         else:
             print("... done.")

tox.ini

@@ -3,6 +3,7 @@ requires =
     tox>=4.2
 env_list =
     lint
+    mypy
     py{py3, 314, 313, 312, 311, 310, 39}
 
 [testenv]
@@ -33,12 +34,12 @@ pass_env =
 commands =
     pre-commit run --all-files --show-diff-on-failure
 
-[testenv:py310]
-deps =
-    tqdm
-
 [testenv:mypy]
 deps =
-    mypy==1.11.2
+    -r requirements-mypy.txt
 commands =
     mypy . {posargs}
+
+[testenv:py310]
+deps =
+    tqdm