update for CircuitPython 8.x+/9.0 displayio compatibility

Author: CedarGroveStudios

examples/gradient_shape.py

@@ -27,7 +27,7 @@
 display.brightness = 0.005
 
 primary_group = displayio.Group()
-display.show(primary_group)
+display.root_group = primary_group
 
 # Create Red/Yellow/Green light-style spectrum
 spectrum_1 = Spectrum([0xFF0000, 0xFFFF00, 0x00FF00], mode="continuous", gamma=0.6)

examples/paletteslice_acme_simpletest.py

@@ -167,7 +167,7 @@ def print_palette(new_palette):
 primary_group.append(slice_label)
 
 # Show the test image and label
-display.show(primary_group)
+display.root_group = primary_group
 print("\n" + ("=" * 15))
 print("TEST of source image")
 slice_label.text = "PALETTE SLICE: source image and palette"

examples/paletteslice_simpletest.py

@@ -85,7 +85,7 @@ def print_palette(new_palette):
 primary_group.append(slice_label)
 
 # Show the test image and label
-display.show(primary_group)
+display.root_group = primary_group
 print("TEST of source image")
 slice_label.text = "PALETTE SLICE: source image and palette"
 time.sleep(2)

examples/paletteslice_ulab_test.py

@@ -58,13 +58,12 @@
 primary_group.append(slice_label)
 
 # Display the primary group
-display.show(primary_group)
+display.root_group = primary_group
 
 # pylint: disable=no-member
 print(f"memory free: {gc.mem_free()} bytes")
 
 while True:
-
     # Show the source image and label
     # print("TEST of source image and palette")
     test_tile.pixel_shader = test_palette_source

pyproject.toml

@@ -40,7 +40,7 @@ dynamic = ["dependencies", "optional-dependencies"]
 [tool.setuptools]
 # TODO: IF LIBRARY FILES ARE A PACKAGE FOLDER,
 #       CHANGE `py_modules = ['...']` TO `packages = ['...']`
-py-modules = ["cedargrove_paletteslice"]
+packages = ["cedargrove_paletteslice"]
 
 [tool.setuptools.dynamic]
 dependencies = {file = ["requirements.txt"]}