improve wheel packaging build

README.md

@@ -179,8 +179,7 @@ installable wheel for the pythong package. The commands below can be
 used to build/install/verify the package.
 
     pipx run build
-    python3 -m venv venv
-    . venv/bin/activate
+    python3 -m venv venv && . venv/bin/activate
     pip install dist/pokerstove-*.whl
     python src/lib/python/test-python
     deactivate

pyproject.toml

@@ -7,16 +7,12 @@ name = "pokerstove"
 version = "1.2"
 
 [tool.scikit-build]
-build-dir = "_build"
-wheel.packages = ["_build/python/pokerstove"]
-cmake.version = ">=3.5"
-cmake.build-type = "Release"
+build-dir = "_build/{wheel_tag}"
+wheel.packages = []
+cmake.version = ">=3.15"
 build.targets = ["pokerstove"]
-install.components = ["pokerstove"]
+install.components = ["python"]
 sdist.exclude = ["src/programs", "android", "win32", "src/ext", "doc", ".*"]
-# build.verbose = true
-# logging.level = "DEBUG"
-
 [tool.scikit-build.cmake.define]
 BUILD_PYTHON = "ON"
 

src/lib/python/CMakeLists.txt

@@ -2,6 +2,7 @@ cmake_minimum_required(VERSION 3.18)
 
 # find swig and python and configure them
 set(CMAKE_SWIG_FLAGS)
+set(UseSWIG_MODULE_VERSION 2)
 find_package(SWIG REQUIRED)
 include(UseSWIG)
 
@@ -26,10 +27,13 @@ set_property(SOURCE pokerstove.i PROPERTY SWIG_MODULE_NAME ${PS_TARGET})
 swig_add_library(${PS_TARGET}
   TYPE MODULE
   LANGUAGE python
-  OUTPUT_DIR ${PYTHON_PROJECT_DIR}
   SOURCES pokerstove.i)
 add_library(${PROJECT_NAMESPACE}::${PS_TARGET} ALIAS ${PS_TARGET})
 
+install(TARGETS ${PS_TARGET} DESTINATION . COMPONENT python)
+get_property(_support_files TARGET ${PS_TARGET} PROPERTY SWIG_SUPPORT_FILES)
+install(FILES "${_support_files}" DESTINATION . COMPONENT python)
+
 # note: macOS is APPLE and also UNIX !
 if(APPLE)
   set_property(TARGET ${PS_TARGET} APPEND PROPERTY