Fixed build packaging issue of missed module sub-directory

Author: andrewmurphy353

pyproject.toml

@@ -45,14 +45,8 @@ dev = [
 requires = ["setuptools>=61.0"]
 build-backend = "setuptools.build_meta"
 
-[tool.setuptools]
-packages = ["curo"]
-
-[tool.setuptools.package-data]
-curo = ["*.py"]
-
-[tool.setuptools.exclude-package-data]
-curo = ["docs/*", "tests/*"]
+[tool.setuptools.packages.find]
+include = ["curo", "curo.*"]
 
 [tool.pytest.ini_options]
 python_files = ["test_*.py"]