refactor: further reduce pylint warnings

Author: Vulcalien

src/app/app.py

@@ -34,29 +34,26 @@ class SudokuApp(App):
     BINDINGS = [Binding("ctrl+z", "suspend_process")]
 
     SCREENS = {
-        "menu" : Menu(classes="SudokuScreen"), 
-        "play" : Play(classes="SudokuScreen"), 
+        "menu" : Menu(classes="SudokuScreen"),
+        "play" : Play(classes="SudokuScreen"),
         "resolve" : Resolve(classes="SudokuScreen"),
         "quit_screen" : QuitScreen(),
         "clear_screen" : ClearScreen(),
         "error_screen" : ErrorScreen(),
         "regenerate_screen" : RegenerateScreen()
-        }
+    }
 
     def on_mount(self) -> None:
         self.push_screen(Menu(classes="SudokuScreen"))
         #self.screen.styles.background="background-darken-3"
         #self.screen.styles.border= ("round", "background-lighten-3")
-    
 
     @on(Click)
     def clicked(self):
         cells=self.query("Cell")
         for cell in cells:
-            if(cell.has_focus):
+            if cell.has_focus:
                 cell.blur()
-    
-
 
     def compose(self) -> ComposeResult:
         yield Footer()

src/app/widgets/resolve.py

@@ -71,14 +71,14 @@ class Resolve(Screen):
     def compose(self) -> ComposeResult:
         with Vertical():
             with Center():
-                yield(Label(SUDOKU_TEXT))
+                yield Label(SUDOKU_TEXT)
             yield Matrix(SUDOKU_SIZE, Mode.STATIC)
         yield Header()
         yield Footer()
 
     def action_main_menu(self) -> None:
         def clean_up(execute: bool) -> None:
-            if(execute):
+            if execute:
                 m = self.query_one("Matrix", Matrix)
                 m.set_mode_and_clear(Mode.STATIC)
                 self.app.pop_screen()

tests/test_tui.py

@@ -14,9 +14,9 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 import os
+import logging
 
 import pytest
-import logging
 
 from src.app.app import SudokuApp
 from src.app.widgets.play import Play # type: ignore
@@ -32,7 +32,6 @@ async def test_push_screen():
         await pilot.pause()
         assert isinstance(app.screen, Play)
 
-
 @pytest.mark.asyncio
 async def test_play_correct():
     app=SudokuApp()
@@ -53,7 +52,7 @@ async def test_play_correct():
             assert i!=-1 and j!=-1
             if os.name=="nt":
                 await pilot.click(f".cell_{i}_{j}")
-            else: 
+            else:
                 current_cell.focus()
             correct_answer=str(m._sudoku.get_cell(j,i))
             await pilot.press(correct_answer)