cleans up install step

CMakeLists.txt

@@ -493,18 +493,18 @@ install(DIRECTORY "${PROJECT_SOURCE_DIR}/TurTLE/test/profiler" DESTINATION share
 
 #####################################################################################
 ## Install the python3 wrapper
-# update __init__
+# copy python package
+install(CODE "execute_process(COMMAND ${CMAKE_COMMAND} -E copy_directory ${PROJECT_SOURCE_DIR}/TurTLE ${PROJECT_BINARY_DIR}/python/TurTLE/)")
+# install __init__
 configure_file(
     "${PROJECT_SOURCE_DIR}/TurTLE/__init__.py.in"
-    "${PROJECT_SOURCE_DIR}/TurTLE/__init__.py"
+    "${PROJECT_BINARY_DIR}/python/TurTLE/__init__.py"
     @ONLY)
 # update setup.py
 configure_file(
     "${PROJECT_SOURCE_DIR}/setup.py.in"
     "${PROJECT_BINARY_DIR}/python/setup.py"
     @ONLY)
-# copy command
-install(CODE "execute_process(COMMAND ${CMAKE_COMMAND} -E copy_directory ${PROJECT_SOURCE_DIR}/TurTLE ${PROJECT_BINARY_DIR}/python/TurTLE/)")
 if(EXISTS "${PROJECT_BINARY_DIR}/host_info.py")
     install(CODE "execute_process(COMMAND ${CMAKE_COMMAND} -E copy ${PROJECT_BINARY_DIR}/host_info.py ${PROJECT_BINARY_DIR}/python/TurTLE/)")
 else()