blob: 6fc765f8f58f8def0ad219676fc4f2290cf94ff0 [file] [log] [blame]
# SPDX-License-Identifier: Apache-2.0
include_guard(GLOBAL)
# On Windows, instruct Python to output UTF-8 even when not
# interacting with a terminal. This is required since Python scripts
# are invoked by CMake code and, on Windows, standard I/O encoding defaults
# to the current code page if not connected to a terminal, which is often
# not what we want.
if (WIN32)
set(ENV{PYTHONIOENCODING} "utf-8")
endif()
set(PYTHON_MINIMUM_REQUIRED 3.8)
find_package(Deprecated COMPONENTS PYTHON_PREFER)
if(NOT DEFINED Python3_EXECUTABLE AND DEFINED WEST_PYTHON)
set(Python3_EXECUTABLE "${WEST_PYTHON}")
endif()
if(NOT Python3_EXECUTABLE)
# We are using foreach here, instead of
# find_program(PYTHON_EXECUTABLE_SYSTEM_DEFAULT "python" "python3")
# cause just using find_program directly could result in a python2.7 as python,
# and not finding a valid python3.
foreach(candidate "python" "python3")
find_program(Python3_EXECUTABLE ${candidate})
if(Python3_EXECUTABLE)
execute_process (COMMAND "${Python3_EXECUTABLE}" -c
"import sys; sys.stdout.write('.'.join([str(x) for x in sys.version_info[:2]]))"
RESULT_VARIABLE result
OUTPUT_VARIABLE version
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(version VERSION_LESS PYTHON_MINIMUM_REQUIRED)
set(Python3_EXECUTABLE "Python3_EXECUTABLE-NOTFOUND" CACHE INTERNAL "Path to a program")
endif()
endif()
endforeach()
endif()
find_package(Python3 ${PYTHON_MINIMUM_REQUIRED} REQUIRED)
# Zephyr internally used Python variable.
set(PYTHON_EXECUTABLE ${Python3_EXECUTABLE})