9d1b361265
The minimum Python version was bumped for Zephyr LTSv3, but only in the documentation and CI. The build system would still accept Python 3.8, yet some scripts in tree have already broken support with that version. Incompatibility errors should be prevented early. Signed-off-by: Grzegorz Swiderski <grzegorz.swiderski@nordicsemi.no>
46 lines
1.7 KiB
CMake
46 lines
1.7 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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include_guard(GLOBAL)
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# On Windows, instruct Python to output UTF-8 even when not
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# interacting with a terminal. This is required since Python scripts
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# are invoked by CMake code and, on Windows, standard I/O encoding defaults
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# to the current code page if not connected to a terminal, which is often
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# not what we want.
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if (WIN32)
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set(ENV{PYTHONIOENCODING} "utf-8")
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endif()
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set(PYTHON_MINIMUM_REQUIRED 3.10)
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find_package(Deprecated COMPONENTS PYTHON_PREFER)
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if(NOT DEFINED Python3_EXECUTABLE AND DEFINED WEST_PYTHON)
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set(Python3_EXECUTABLE "${WEST_PYTHON}")
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endif()
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if(NOT Python3_EXECUTABLE)
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# We are using foreach here, instead of
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# find_program(PYTHON_EXECUTABLE_SYSTEM_DEFAULT "python" "python3")
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# cause just using find_program directly could result in a python2.7 as python,
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# and not finding a valid python3.
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foreach(candidate "python" "python3")
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find_program(Python3_EXECUTABLE ${candidate} PATHS ENV VIRTUAL_ENV NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH)
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if(Python3_EXECUTABLE)
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execute_process (COMMAND "${Python3_EXECUTABLE}" -c
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"import sys; sys.stdout.write('.'.join([str(x) for x in sys.version_info[:2]]))"
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RESULT_VARIABLE result
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OUTPUT_VARIABLE version
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(version VERSION_LESS PYTHON_MINIMUM_REQUIRED)
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set(Python3_EXECUTABLE "Python3_EXECUTABLE-NOTFOUND" CACHE INTERNAL "Path to a program")
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endif()
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endif()
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endforeach()
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endif()
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find_package(Python3 ${PYTHON_MINIMUM_REQUIRED} REQUIRED)
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# Zephyr internally used Python variable.
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set(PYTHON_EXECUTABLE ${Python3_EXECUTABLE})
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