test: Fix

.github/workflows/python-package.yml

@@ -36,6 +36,8 @@ jobs:
       run: |
         sudo apt-get update
         sudo apt-get install -y xvfb
+        Xvfb :99 -screen 0 1280x1024x24 &
+        echo "DISPLAY=:99" >> $GITHUB_ENV
 
     - name: Lint with pylint
       run: pylint $(git ls-files "*.py")

tests/test_core/test_containers.py

@@ -68,15 +68,6 @@ def test_transparentcolor(self) -> None:
             self.assertIsNone(tk.transparentcolor(""))
             self.assertEqual(tk.transparentcolor(), None)
 
-    @unittest.skipUnless(platform.system() == "Darwin", "Only works on Darwin")
-    def test_transparent(self) -> None:
-        with containers.Tk() as tk:
-            self.assertEqual(tk.transparent(), None)
-            self.assertIsNone(tk.transparent("red"))
-            self.assertEqual(str(tk.transparent()), "red")
-            self.assertIsNone(tk.transparent(""))
-            self.assertEqual(tk.transparent(), None)
-
     def test_center(self) -> None:
         with containers.Tk() as tk:
             tk.center()

tkintertools/core/containers.py

@@ -284,18 +284,6 @@ def transparentcolor(self, value: str | None = None) -> str | None:
             result = self.wm_attributes("-transparentcolor", value)
             return None if result == "" else result
 
-    elif platform.system() == "Darwin":
-
-        def transparent(self, value: str | None = None) -> str | None:
-            """Set or get the penetration color of the window
-
-            * `value`: the penetration color of the window
-
-            This method only works on Darwin!
-            """
-            result = self.wm_attributes("-transparent", value)
-            return None if result == "" else result
-
     @typing_extensions.override
     def destroy(self) -> None:
         """Destroy this and all descendants widgets."""