Try fixing test_setup.py

tests/test_setup.py

@@ -1,24 +1,27 @@
-import scc
 import pkgutil
 
+import toml
+
+import scc
+
+
 class TestSetup(object):
-	"""
-	Tests if SCC should be installable.
-	"""
-
+	"""Test if SCC should be installable."""
+
 	def test_packages(self):
-		"""
-		Tests if every known Action is documentated in docs/actions.md
-		"""
+		"""Test if every known Action is documented in docs/actions.md."""
 		try:
 			import gi
-			gi.require_version('Gtk', '3.0') 
-			gi.require_version('GdkX11', '3.0') 
-			gi.require_version('Rsvg', '2.0') 
+			gi.require_version('Gtk', '3.0')
+			gi.require_version('GdkX11', '3.0')
+			gi.require_version('Rsvg', '2.0')
 		except ImportError:
 			pass
-
-		from setup import packages
+
+		# Load the packages from pyproject.toml
+		pyproject = toml.load("pyproject.toml")
+		packages = pyproject["tool"]["setuptools"]["packages"]
+
 		for importer, modname, ispkg in pkgutil.walk_packages(path=scc.__path__, prefix="scc.", onerror=lambda x: None):
 			if ispkg:
-				assert modname in packages, "Package '%s' is not being installed by setup.py" % (modname,)
+				assert modname in packages, f"Package '{modname}' is not being installed by setup.py"