Realized that companion Python script is actually not needed at all, can be replaced with command line

tools/cmake/CheckPythonPackage.cmake

@@ -2,12 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # CMake functions for checking for Python packages
-# Requires PYTHON_EXECUTABLE to be defined.  Call FindPythonInterp first!
-
-# NOTE: if moving this file, be sure to also move python_packagecheck.py
-
-# must evaluate this now since CMAKE_CURRENT_LIST_DIR doesn't work in function scope
-set(PYTHON_PACKAGECHECK_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/python_packagecheck.py)
+# Requires PYTHON_EXECUTABLE to be defined.  Call FindPython first!
 
 # set OUTPUT_VAR to whether PACKAGENAME was found
 function(check_python_package PACKAGENAME OUTPUT_VAR)
@@ -35,7 +30,7 @@ function(check_python_package PACKAGENAME OUTPUT_VAR)
         set(PY_INTERP_FOR_${OUTPUT_VAR} ${Python3_EXECUTABLE} CACHE INTERNAL "The python interpreter used to run the ${OUTPUT_VAR} check" FORCE)
 
         execute_process(
-            COMMAND ${Python3_EXECUTABLE} ${PYTHON_PACKAGECHECK_SCRIPT} ${PACKAGENAME} RESULT_VARIABLE PACKAGECHECK_RESULT
+            COMMAND ${Python3_EXECUTABLE} -c "import ${PACKAGENAME}" RESULT_VARIABLE PACKAGECHECK_RESULT
          )
 
         if(${PACKAGECHECK_RESULT} EQUAL 0)
@@ -67,5 +62,5 @@ function(verify_python_package PACKAGENAME)
     if(NOT ${HAVE_VAR_NAME})
         message(FATAL_ERROR "The required Python package ${PACKAGENAME} was not found in ${Python3_EXECUTABLE}.  Please install it.")
     endif()
-    
+
 endfunction(verify_python_package)

tools/cmake/python_packagecheck.py

@@ -1,13 +0,0 @@
-# Copyright (c) 2020 ARM Limited. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
-
-"""Script to check if a Python module/package is installed."""
-
-import sys
-
-try:
-    __import__(sys.argv[1])
-except ImportError:
-    exit(1)
-
-exit(0)