python 3.14 free-threaded not supported #1146
Description
python3.14t -m pip install opencv-python
Looking in indexes: https://mirrors.cernet.edu.cn/pypi/web/simple
Collecting opencv-python
Using cached https://mirrors.sustech.edu.cn/pypi/web/packages/ac/71/25c98e634b6bdeca4727c7f6d6927b056080668c5008ad3c8fc9e7f8f6ec/opencv-python-4.12.0.88.tar.gz (95.4 MB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: numpy<2.3.0,>=2 in d:\python314\lib\site-packages (from opencv-python) (2.2.6)
Building wheels for collected packages: opencv-python
Building wheel for opencv-python (pyproject.toml) ... error
error: subprocess-exited-with-error
× Building wheel for opencv-python (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [2276 lines of output]
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-- Trying 'Ninja (Visual Studio 17 2022 x64 v144)' generator
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Not searching for unused variables given on the command line.
CMake Deprecation Warning at CMakeLists.txt:1 (cmake_minimum_required):
Compatibility with CMake < 3.10 will be removed from a future version of
CMake.
Update the VERSION argument <min> value. Or, use the <min>...<max> syntax
to tell CMake that the project requires at least <min> but has been updated
to work with policies introduced by <max> or earlier.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Ninja
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
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-- Trying 'Ninja (Visual Studio 17 2022 x64 v144)' generator - failure
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-- Trying 'Visual Studio 17 2022 x64 v144' generator
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Not searching for unused variables given on the command line.
CMake Deprecation Warning at CMakeLists.txt:1 (cmake_minimum_required):
Compatibility with CMake < 3.10 will be removed from a future version of
CMake.
Update the VERSION argument <min> value. Or, use the <min>...<max> syntax
to tell CMake that the project requires at least <min> but has been updated
to work with policies introduced by <max> or earlier.
-- Selecting Windows SDK version 10.0.22621.0 to target Windows 10.0.26100.
CMake Error at CMakeLists.txt:2 (PROJECT):
Failed to run MSBuild command:
D:/Program Files/Microsoft Visual Studio/2022/Community/MSBuild/Current/Bin/amd64/MSBuild.exe
to get the value of VCTargetsPath:
闁\xab鍌滄暏娴\x9c?.NET Framework MSBuild 閻楀牊婀\xb0 17.13.19+0d9f5a35a
閻㈢喐鍨氶崥顖氬З閺冨爼妫挎稉?2025/9/20 23:55:51閵\x86?
閼哄倻鍋\xa3 1 娑撳﹦娈戞い鍦\xad娲伴垾娣\x90:\Users\monke\AppData\Local\Temp\pip-install-gocaa_xq\opencv-python_7a53ab19a2534a50ac1eccf6c077ed29\_cmake_test_compile\build\CMakeFiles\4.1.1\VCTargetsPath.vcxproj閳\xa5?姒涙\xa8款吇閻╊喗鐖\xa3)閵\x86?
D:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(459,5): error MSB8020: 閺冪姵纭堕幍鎯у煂 v144 閻ㄥ嫮鏁撻幋鎰\xac浼愰崗?楠炲啿褰村\xae搞儱鍙块梿?=閳ユ抚144閳\xa5?閵嗗倽瀚㈢憰浣峰▏閻\xa2?v144 閻㈢喐鍨氬\xae搞儱鍙挎潻娑滎攽閻㈢喐鍨氶敍宀冾嚞鐎瑰\xa4庮棅 v144 閻㈢喐鍨氬\xae搞儱鍙块妴鍌涘灗閼板拑绱濋崣顖欎簰閸楀洨楠囬崚鏉跨秼閸\x93?Visual Studio 瀹搞儱鍙块敍灞炬煙瀵\xae蹇旀Ц闁\xab姘崇箖闁\xab澶嬪\xabㄩ垾婊堛\x80嶉惄顔光偓婵婂綅閸楁洘鍨ㄩ崣鎶芥暛閸楁洖鍤\xae鐠囥儴袙閸愯櫕鏌熷\xa6楀牞绱濋悞璺烘倵闁\xab澶嬪\xabㄩ垾婊堝櫢鐎规俺袙閸愯櫕鏌熷\xa6楀牏娲伴弽鍥ｂ偓婵勨偓?[C:\Users\monke\AppData\Local\Temp\pip-install-gocaa_xq\opencv-python_7a53ab19a2534a50ac1eccf6c077ed29\_cmake_test_compile\build\CMakeFiles\4.1.1\VCTargetsPath.vcxproj]
瀹告彃鐣\xac閹存劗鏁撻幋鎰般\x80嶉惄顔光偓娣\x90:\Users\monke\AppData\Local\Temp\pip-install-gocaa_xq\opencv-python_7a53ab19a2534a50ac1eccf6c077ed29\_cmake_test_compile\build\CMakeFiles\4.1.1\VCTargetsPath.vcxproj閳\xa5?姒涙\xa8款吇閻╊喗鐖\xa3)閻ㄥ嫭鎼锋担?- 婢惰精瑙﹂妴?
閻㈢喐鍨氭径杈\xab瑙﹂妴?
閳ユ窅:\Users\monke\AppData\Local\Temp\pip-install-gocaa_xq\opencv-python_7a53ab19a2534a50ac1eccf6c077ed29\_cmake_test_compile\build\CMakeFiles\4.1.1\VCTargetsPath.vcxproj閳\xa5?姒涙\xa8款吇閻╊喗鐖\xa3) (1) ->
(PrepareForBuild 閻╊喗鐖\xa3) ->
D:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(459,5): error MSB8020: 閺冪姵纭堕幍鎯у煂 v144 閻ㄥ嫮鏁撻幋鎰\xac浼愰崗?楠炲啿褰村\xae搞儱鍙块梿?=閳ユ抚144閳\xa5?閵嗗倽瀚㈢憰浣峰▏閻\xa2?v144 閻㈢喐鍨氬\xae搞儱鍙挎潻娑滎攽閻㈢喐鍨氶敍宀冾嚞鐎瑰\xa4庮棅 v144 閻㈢喐鍨氬\xae搞儱鍙块妴鍌涘灗閼板拑绱濋崣顖欎簰閸楀洨楠囬崚鏉跨秼閸\x93?Visual Studio 瀹搞儱鍙块敍灞炬煙瀵\xae蹇旀Ц闁\xab姘崇箖闁\xab澶嬪\xabㄩ垾婊堛\x80嶉惄顔光偓婵婂綅閸楁洘鍨ㄩ崣鎶芥暛閸楁洖鍤\xae鐠囥儴袙閸愯櫕鏌熷\xa6楀牞绱濋悞璺烘倵闁\xab澶嬪\xabㄩ垾婊堝櫢鐎规俺袙閸愯櫕鏌熷\xa6楀牏娲伴弽鍥ｂ偓婵勨偓?[C:\Users\monke\AppData\Local\Temp\pip-install-gocaa_xq\opencv-python_7a53ab19a2534a50ac1eccf6c077ed29\_cmake_test_compile\build\CMakeFiles\4.1.1\VCTargetsPath.vcxproj]
0 娑擃亣顒熼崨?
1 娑擃亪鏁婄拠?
瀹歌尙鏁ら弮鍫曟？ 00:00:00.13
Exit code: 1
-- Configuring incomplete, errors occurred!
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-- Trying 'Visual Studio 17 2022 x64 v144' generator - failure
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-- Trying 'Ninja (Visual Studio 17 2022 x64 v143)' generator
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--
Not searching for unused variables given on the command line.
CMake Deprecation Warning at CMakeLists.txt:1 (cmake_minimum_required):
Compatibility with CMake < 3.10 will be removed from a future version of
CMake.
Update the VERSION argument <min> value. Or, use the <min>...<max> syntax
to tell CMake that the project requires at least <min> but has been updated
to work with policies introduced by <max> or earlier.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Ninja
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
--
-------
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-----------------
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-- Trying 'Ninja (Visual Studio 17 2022 x64 v143)' generator - failure
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-- Trying 'Visual Studio 17 2022 x64 v143' generator
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-----------------
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--
Not searching for unused variables given on the command line.
CMake Deprecation Warning at CMakeLists.txt:1 (cmake_minimum_required):
Compatibility with CMake < 3.10 will be removed from a future version of
CMake.
Update the VERSION argument <min> value. Or, use the <min>...<max> syntax
to tell CMake that the project requires at least <min> but has been updated
to work with policies introduced by <max> or earlier.
-- Selecting Windows SDK version 10.0.22621.0 to target Windows 10.0.26100.
-- The C compiler identification is MSVC 19.43.34809.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: D:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.43.34808/bin/Hostx64/x64/cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- The CXX compiler identification is MSVC 19.43.34809.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: D:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.43.34808/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (2.6s)
-- Generating done (0.0s)
-- Build files have been written to: C:/Users/monke/AppData/Local/Temp/pip-install-gocaa_xq/opencv-python_7a53ab19a2534a50ac1eccf6c077ed29/_cmake_test_compile/build
--
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-- Trying 'Visual Studio 17 2022 x64 v143' generator - success
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Configuring Project
Working directory:
C:\Users\monke\AppData\Local\Temp\pip-install-gocaa_xq\opencv-python_7a53ab19a2534a50ac1eccf6c077ed29\_skbuild\win-amd64-3.14\cmake-build
Command:
'D:\Program Files\CMake\bin\cmake.EXE' 'C:\Users\monke\AppData\Local\Temp\pip-install-gocaa_xq\opencv-python_7a53ab19a2534a50ac1eccf6c077ed29\opencv' -G 'Visual Studio 17 2022' --no-warn-unused-cli '-DCMAKE_INSTALL_PREFIX:PATH=C:\Users\monke\AppData\Local\Temp\pip-install-gocaa_xq\opencv-python_7a53ab19a2534a50ac1eccf6c077ed29\_skbuild\win-amd64-3.14\cmake-install' -DPYTHON_VERSION_STRING:STRING=3.14.0rc3 -DSKBUILD:INTERNAL=TRUE '-DCMAKE_MODULE_PATH:PATH=C:\Users\monke\AppData\Local\Temp\pip-build-env-da8tnaqp\overlay\Lib\site-packages\skbuild\resources\cmake' '-DPYTHON_EXECUTABLE:PATH=D:\Python314\python3.14t.exe' '-DPYTHON_INCLUDE_DIR:PATH=D:\Python314\Include' '-DPYTHON_LIBRARY:PATH=D:\Python314\libs\python314t.lib' '-DPython_EXECUTABLE:PATH=D:\Python314\python3.14t.exe' '-DPython_ROOT_DIR:PATH=D:\Python314' -DPython_FIND_REGISTRY:STRING=NEVER '-DPython_INCLUDE_DIR:PATH=D:\Python314\Include' '-DPython_LIBRARY:PATH=D:\Python314\libs\python314t.lib' '-DPython3_EXECUTABLE:PATH=D:\Python314\python3.14t.exe' '-DPython3_ROOT_DIR:PATH=D:\Python314' -DPython3_FIND_REGISTRY:STRING=NEVER '-DPython3_INCLUDE_DIR:PATH=D:\Python314\Include' '-DPython3_LIBRARY:PATH=D:\Python314\libs\python314t.lib' -T v143 -A x64 '-DPYTHON3_EXECUTABLE=D:\Python314\python3.14t.exe' '-DPYTHON_DEFAULT_EXECUTABLE=D:\Python314\python3.14t.exe' -DPYTHON3_INCLUDE_DIR=D:/Python314/Include -DPYTHON3_LIBRARY=D:/Python314/libs/python314t.lib -DBUILD_opencv_python3=ON -DBUILD_opencv_python2=OFF -DBUILD_opencv_java=OFF -DOPENCV_PYTHON3_INSTALL_PATH=python -DINSTALL_CREATE_DISTRIB=ON -DBUILD_opencv_apps=OFF -DBUILD_opencv_freetype=OFF -DBUILD_SHARED_LIBS=OFF -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DBUILD_DOCS=OFF -DPYTHON3_LIMITED_API=ON -DBUILD_OPENEXR=ON -DCMAKE_GENERATOR_PLATFORM=x64 -DCMAKE_BUILD_TYPE:STRING=Release
Not searching for unused variables given on the command line.
CMake Deprecation Warning at CMakeLists.txt:25 (cmake_minimum_required):
Compatibility with CMake < 3.10 will be removed from a future version of
CMake.
Update the VERSION argument <min> value. Or, use the <min>...<max> syntax
to tell CMake that the project requires at least <min> but has been updated
to work with policies introduced by <max> or earlier.
-- Selecting Windows SDK version 10.0.22621.0 to target Windows 10.0.26100.
-- The CXX compiler identification is MSVC 19.43.34809.0
-- The C compiler identification is MSVC 19.43.34809.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: D:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.43.34808/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: D:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.43.34808/bin/Hostx64/x64/cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- ocv_init_download: OpenCV source tree is not fetched as git repository. 3rdparty resources will be downloaded from github.com by default.
-- Detected processor: AMD64
-- Found PythonInterp: D:\Python314\python3.14t.exe (found suitable version "3.14", minimum required is "3.2")
-- Found PythonLibs: D:/Python314/libs/python314t.lib (found suitable exact version "3.14.0rc3")
Traceback (most recent call last):
File "<string>", line 1, in <module>
import numpy; print(numpy.get_include())
^^^^^^^^^^^^
ModuleNotFoundError: No module named 'numpy'
-- Performing Test HAVE_CXX_FP:PRECISE
-- Performing Test HAVE_CXX_FP:PRECISE - Success
-- Performing Test HAVE_C_FP:PRECISE
-- Performing Test HAVE_C_FP:PRECISE - Success
-- Performing Test HAVE_CPU_SSE3_SUPPORT (check file: cmake/checks/cpu_sse3.cpp)
-- Performing Test HAVE_CPU_SSE3_SUPPORT - Success
-- Performing Test HAVE_CPU_SSSE3_SUPPORT (check file: cmake/checks/cpu_ssse3.cpp)
-- Performing Test HAVE_CPU_SSSE3_SUPPORT - Success
-- Performing Test HAVE_CPU_SSE4_1_SUPPORT (check file: cmake/checks/cpu_sse41.cpp)
-- Performing Test HAVE_CPU_SSE4_1_SUPPORT - Success
-- Performing Test HAVE_CPU_POPCNT_SUPPORT (check file: cmake/checks/cpu_popcnt.cpp)
-- Performing Test HAVE_CPU_POPCNT_SUPPORT - Success
-- Performing Test HAVE_CPU_SSE4_2_SUPPORT (check file: cmake/checks/cpu_sse42.cpp)
-- Performing Test HAVE_CPU_SSE4_2_SUPPORT - Success
-- Performing Test HAVE_CXX_ARCH:AVX (check file: cmake/checks/cpu_avx.cpp)
-- Performing Test HAVE_CXX_ARCH:AVX - Success
-- Performing Test HAVE_CXX_ARCH:AVX2 (check file: cmake/checks/cpu_avx2.cpp)
-- Performing Test HAVE_CXX_ARCH:AVX2 - Success
-- Performing Test HAVE_CXX_ARCH:AVX512 (check file: cmake/checks/cpu_avx512.cpp)
-- Performing Test HAVE_CXX_ARCH:AVX512 - Success
-- Performing Test HAVE_CPU_BASELINE_FLAGS
-- Performing Test HAVE_CPU_BASELINE_FLAGS - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_1
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_1 - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_2
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_2 - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_FP16
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_FP16 - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX2
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX2 - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX512_SKX
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX512_SKX - Success
-- Performing Test HAVE_CXX_W15240
-- Performing Test HAVE_CXX_W15240 - Success
-- Performing Test HAVE_C_W15240
-- Performing Test HAVE_C_W15240 - Success
-- Looking for malloc.h
-- Looking for malloc.h - found
-- Looking for _aligned_malloc
-- Looking for _aligned_malloc - found
-- Looking for fseeko
-- Looking for fseeko - not found
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of off64_t
-- Check size of off64_t - failed
-- Could NOT find AVIF (missing: AVIF_LIBRARY AVIF_INCLUDE_DIR)
-- libjpeg-turbo: VERSION = 3.1.0, BUILD = opencv-4.12.0-libjpeg-turbo
-- Check size of size_t
-- Check size of size_t - done
-- Check size of unsigned long
-- Check size of unsigned long - done
-- Looking for include file intrin.h
-- Looking for include file intrin.h - found
-- Looking for a ASM_NASM compiler
-- Looking for a ASM_NASM compiler - NOTFOUND
-- SIMD extensions disabled: could not find NASM compiler. Performance will suffer.
-- Looking for assert.h
-- Looking for assert.h - found
-- Looking for fcntl.h
Copying files from CMake output
Traceback (most recent call last):
File "D:\Python314\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 389, in <module>
main()
~~~~^^
File "D:\Python314\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 373, in main
json_out["return_val"] = hook(**hook_input["kwargs"])
~~~~^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\Python314\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 280, in build_wheel
return _build_backend().build_wheel(
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
wheel_directory, config_settings, metadata_directory
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\monke\AppData\Local\Temp\pip-build-env-da8tnaqp\overlay\Lib\site-packages\setuptools\build_meta.py", line 410, in build_wheel
return self._build_with_temp_dir(
~~~~~~~~~~~~~~~~~~~~~~~~~^
['bdist_wheel'],
^^^^^^^^^^^^^^^^
...<3 lines>...
self._arbitrary_args(config_settings),
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "C:\Users\monke\AppData\Local\Temp\pip-build-env-da8tnaqp\overlay\Lib\site-packages\setuptools\build_meta.py", line 395, in _build_with_temp_dir
self.run_setup()
~~~~~~~~~~~~~~^^
File "C:\Users\monke\AppData\Local\Temp\pip-build-env-da8tnaqp\overlay\Lib\site-packages\setuptools\build_meta.py", line 311, in run_setup
exec(code, locals())
~~~~^^^^^^^^^^^^^^^^
File "<string>", line 537, in <module>
File "<string>", line 266, in main
File "C:\Users\monke\AppData\Local\Temp\pip-build-env-da8tnaqp\overlay\Lib\site-packages\skbuild\setuptools_wrap.py", line 704, in setup
_classify_installed_files(
~~~~~~~~~~~~~~~~~~~~~~~~~^
cmake_manifest,
^^^^^^^^^^^^^^^
...<8 lines>...
cmake_install_dir,
^^^^^^^^^^^^^^^^^^
)
^
File "<string>", line 411, in _classify_installed_files_override
FileNotFoundError: [Errno 2] No such file or directory: '_skbuild\\win-amd64-3.14\\cmake-install\\python\\cv2\\config-3.py'
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for opencv-python
Failed to build opencv-python
error: failed-wheel-build-for-install
× Failed to build installable wheels for some pyproject.toml based projects
╰─> opencv-python