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Open Source Computer Vision Library https://opencv.org/
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opencv/cmake/OpenCVDetectPython.cmake

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Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
# Find specified Python version
# Arguments:
# preferred_version (value): Version to check for first
# min_version (value): Minimum supported version
# library_env (value): Name of Python library ENV variable to check
# include_dir_env (value): Name of Python include directory ENV variable to check
# found (variable): Set if interpreter found
# executable (variable): Output of executable found
# version_string (variable): Output of found version
# version_major (variable): Output of found major version
# version_minor (variable): Output of found minor version
# libs_found (variable): Set if libs found
# libs_version_string (variable): Output of found libs version
# libraries (variable): Output of found Python libraries
# library (variable): Output of found Python library
# debug_libraries (variable): Output of found Python debug libraries
# debug_library (variable): Output of found Python debug library
# include_path (variable): Output of found Python include path
# include_dir (variable): Output of found Python include dir
# include_dir2 (variable): Output of found Python include dir2
# packages_path (variable): Output of found Python packages path
# numpy_include_dirs (variable): Output of found Python Numpy include dirs
# numpy_version (variable): Output of found Python Numpy version
function(find_python preferred_version min_version library_env include_dir_env
found executable version_string version_major version_minor
libs_found libs_version_string libraries library debug_libraries
debug_library include_path include_dir include_dir2 packages_path
numpy_include_dirs numpy_version)
cmake: fix python detection
9 years ago
if(NOT ${found})
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
7 years ago
if(" ${executable}" STREQUAL " PYTHON_EXECUTABLE")
set(__update_python_vars 0)
else()
set(__update_python_vars 1)
endif()
fix binary package build
10 years ago
ocv_check_environment_variables(${executable})
if(${executable})
set(PYTHON_EXECUTABLE "${${executable}}")
endif()
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
if(WIN32 AND NOT ${executable} AND OPENCV_PYTHON_PREFER_WIN32_REGISTRY) # deprecated
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
# search for executable with the same bitness as resulting binaries
# standard FindPythonInterp always prefers executable from system path
# this is really important because we are using the interpreter for numpy search and for choosing the install location
foreach(_CURRENT_VERSION ${Python_ADDITIONAL_VERSIONS} "${preferred_version}" "${min_version}")
Fix win32 search for same bitness executable find_package(PythonInterp) calls find_program(PYTHON_EXECUTABLE), i.e. without version number. For the Win32-search before to be effective, the same variable has to be used.
10 years ago
find_host_program(PYTHON_EXECUTABLE
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
NAMES python${_CURRENT_VERSION} python
PATHS
[HKEY_LOCAL_MACHINE\\\\SOFTWARE\\\\Python\\\\PythonCore\\\\${_CURRENT_VERSION}\\\\InstallPath]
[HKEY_CURRENT_USER\\\\SOFTWARE\\\\Python\\\\PythonCore\\\\${_CURRENT_VERSION}\\\\InstallPath]
NO_SYSTEM_ENVIRONMENT_PATH
)
endforeach()
endif()
Global CMake reorganization: [~] Automatically tracked dependencies between modules [+] Support for optional module dependencies [+] Options to choose modules to build [~] Removed hardcoded modules lists from OpenCVConfig.cmake, opencv.pc and OpenCV.mk [+] Added COMPONENTS support for FIND_PACKAGE(OpenCV) [~] haartraining and traincascade are moved outside of modules folder since they aren't the modules
13 years ago
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
if(preferred_version)
set(__python_package_version "${preferred_version} EXACT")
find_host_package(PythonInterp "${preferred_version}" EXACT)
if(NOT PYTHONINTERP_FOUND)
message(STATUS "Python is not found: ${preferred_version} EXACT")
endif()
cmake: fix Python detection for standalone bindings
6 years ago
elseif(min_version)
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
set(__python_package_version "${min_version}")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
find_host_package(PythonInterp "${min_version}")
cmake: fix Python detection for standalone bindings
6 years ago
else()
set(__python_package_version "")
find_host_package(PythonInterp)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
endif()
merged 2.4 into trunk
13 years ago
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
string(REGEX MATCH "^[0-9]+" _python_version_major "${min_version}")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
if(PYTHONINTERP_FOUND)
Detect the correct Python major version
8 years ago
# Check if python major version is correct
cmake: fix Python detection for standalone bindings
6 years ago
if(" ${_python_version_major}" STREQUAL " ")
set(_python_version_major "${PYTHON_VERSION_MAJOR}")
endif()
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
if(NOT "${_python_version_major}" STREQUAL "${PYTHON_VERSION_MAJOR}"
AND NOT DEFINED ${executable}
)
if(NOT OPENCV_SKIP_PYTHON_WARNING)
fix: minor typo in CMakeCVDetectPython
5 years ago
message(WARNING "CMake's 'find_host_package(PythonInterp ${__python_package_version})' found wrong Python version:\n"
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
"PYTHON_EXECUTABLE=${PYTHON_EXECUTABLE}\n"
"PYTHON_VERSION_STRING=${PYTHON_VERSION_STRING}\n"
fix: minor typo in CMakeCVDetectPython
5 years ago
"Consider providing the '${executable}' variable via CMake command line or environment variables\n")
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
endif()
ocv_clear_vars(PYTHONINTERP_FOUND PYTHON_EXECUTABLE PYTHON_VERSION_STRING PYTHON_VERSION_MAJOR PYTHON_VERSION_MINOR PYTHON_VERSION_PATCH)
if(NOT CMAKE_VERSION VERSION_LESS "3.12")
Drop Python2 support.
1 year ago
set(__PYTHON_PREFIX Python3)
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
find_host_package(${__PYTHON_PREFIX} "${preferred_version}" COMPONENTS Interpreter)
if(${__PYTHON_PREFIX}_EXECUTABLE)
set(PYTHON_EXECUTABLE "${${__PYTHON_PREFIX}_EXECUTABLE}")
find_host_package(PythonInterp "${preferred_version}") # Populate other variables
endif()
else()
message(STATUS "Consider using CMake 3.12+ for better Python support")
endif()
endif()
if(PYTHONINTERP_FOUND AND "${_python_version_major}" STREQUAL "${PYTHON_VERSION_MAJOR}")
Detect the correct Python major version
8 years ago
# Copy outputs
set(_found ${PYTHONINTERP_FOUND})
set(_executable ${PYTHON_EXECUTABLE})
set(_version_string ${PYTHON_VERSION_STRING})
set(_version_major ${PYTHON_VERSION_MAJOR})
set(_version_minor ${PYTHON_VERSION_MINOR})
set(_version_patch ${PYTHON_VERSION_PATCH})
endif()
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
7 years ago
endif()
Normalize line endings and whitespace
12 years ago
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
7 years ago
if(__update_python_vars)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
# Clear find_host_package side effects
unset(PYTHONINTERP_FOUND)
unset(PYTHON_EXECUTABLE CACHE)
unset(PYTHON_VERSION_STRING)
unset(PYTHON_VERSION_MAJOR)
unset(PYTHON_VERSION_MINOR)
unset(PYTHON_VERSION_PATCH)
Fixed some build warnings; slightly improved python search
13 years ago
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
if(_found)
set(_version_major_minor "${_version_major}.${_version_minor}")
update osx and ios build_framework.py
9 years ago
if(NOT ANDROID AND NOT APPLE_FRAMEWORK)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
ocv_check_environment_variables(${library_env} ${include_dir_env})
cmake: python, allow dynamic symbols lookup from libpython.so
9 years ago
if(NOT ${${library_env}} STREQUAL "")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
set(PYTHON_LIBRARY "${${library_env}}")
#1508 prefer architecture-specific install directory for python bindings, when LIB_SUFFIX is used
13 years ago
endif()
cmake: python, allow dynamic symbols lookup from libpython.so
9 years ago
if(NOT ${${include_dir_env}} STREQUAL "")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
set(PYTHON_INCLUDE_DIR "${${include_dir_env}}")
#1508 prefer architecture-specific install directory for python bindings, when LIB_SUFFIX is used
13 years ago
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
# not using _version_string here, because it might not conform to the CMake version format
Changed cmake python library search startegy for crosscompiling
10 years ago
if(CMAKE_CROSSCOMPILING)
# builder version can differ from target, matching base version (e.g. 2.7)
fix python cross-compilation
10 years ago
find_package(PythonLibs "${_version_major_minor}")
Changed cmake python library search startegy for crosscompiling
10 years ago
else()
fix python cross-compilation
10 years ago
find_package(PythonLibs "${_version_major_minor}.${_version_patch}" EXACT)
Changed cmake python library search startegy for crosscompiling
10 years ago
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
if(PYTHONLIBS_FOUND)
# Copy outputs
set(_libs_found ${PYTHONLIBS_FOUND})
set(_libraries ${PYTHON_LIBRARIES})
set(_include_path ${PYTHON_INCLUDE_PATH})
set(_include_dirs ${PYTHON_INCLUDE_DIRS})
set(_debug_libraries ${PYTHON_DEBUG_LIBRARIES})
set(_libs_version_string ${PYTHONLIBS_VERSION_STRING})
set(_debug_library ${PYTHON_DEBUG_LIBRARY})
set(_library ${PYTHON_LIBRARY})
set(_library_debug ${PYTHON_LIBRARY_DEBUG})
set(_library_release ${PYTHON_LIBRARY_RELEASE})
set(_include_dir ${PYTHON_INCLUDE_DIR})
set(_include_dir2 ${PYTHON_INCLUDE_DIR2})
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
7 years ago
endif()
if(__update_python_vars)
fix python cross-compilation
10 years ago
# Clear find_package side effects
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
unset(PYTHONLIBS_FOUND)
unset(PYTHON_LIBRARIES)
unset(PYTHON_INCLUDE_PATH)
unset(PYTHON_INCLUDE_DIRS)
unset(PYTHON_DEBUG_LIBRARIES)
unset(PYTHONLIBS_VERSION_STRING)
unset(PYTHON_DEBUG_LIBRARY CACHE)
unset(PYTHON_LIBRARY)
unset(PYTHON_LIBRARY_DEBUG)
unset(PYTHON_LIBRARY_RELEASE)
unset(PYTHON_LIBRARY CACHE)
unset(PYTHON_LIBRARY_DEBUG CACHE)
unset(PYTHON_LIBRARY_RELEASE CACHE)
unset(PYTHON_INCLUDE_DIR CACHE)
unset(PYTHON_INCLUDE_DIR2 CACHE)
#1508 prefer architecture-specific install directory for python bindings, when LIB_SUFFIX is used
13 years ago
endif()
Fixed some build warnings; slightly improved python search
13 years ago
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
Merge pull request #24136 from komakai:visionos_support Add experimental support for Apple VisionOS platform #24136 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch This is dependent on cmake support for VisionOs which is currently in progress. Creating PR now to test that there are no regressions in iOS and macOS builds
12 months ago
if(NOT ANDROID AND NOT IOS AND NOT XROS)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
if(CMAKE_HOST_UNIX)
Merge pull request #21219 from asenyaev:asen/remove_distutils * Replaced distutils module to sysconfig * Fixed getting a path to python lib
3 years ago
execute_process(COMMAND ${_executable} -c "from sysconfig import *; print(get_path('purelib'))"
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
RESULT_VARIABLE _cvpy_process
OUTPUT_VARIABLE _std_packages_path
reorder the if's for clarity
11 years ago
OUTPUT_STRIP_TRAILING_WHITESPACE)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
if("${_std_packages_path}" MATCHES "site-packages")
set(_packages_path "python${_version_major_minor}/site-packages")
else() #debian based assumed, install to the dist-packages.
set(_packages_path "python${_version_major_minor}/dist-packages")
endif()
Ported install layout refactoring from master branch
5 years ago
set(_packages_path "lib/${_packages_path}")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
elseif(CMAKE_HOST_WIN32)
get_filename_component(_path "${_executable}" PATH)
file(TO_CMAKE_PATH "${_path}" _path)
if(NOT EXISTS "${_path}/Lib/site-packages")
unset(_path)
get_filename_component(_path "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_version_major_minor}\\InstallPath]" ABSOLUTE)
if(NOT _path)
get_filename_component(_path "[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_version_major_minor}\\InstallPath]" ABSOLUTE)
endif()
file(TO_CMAKE_PATH "${_path}" _path)
endif()
set(_packages_path "${_path}/Lib/site-packages")
unset(_path)
endif()
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
7 years ago
set(_numpy_include_dirs "${${numpy_include_dirs}}")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
if(NOT _numpy_include_dirs)
if(CMAKE_CROSSCOMPILING)
message(STATUS "Cannot probe for Python/Numpy support (because we are cross-compiling OpenCV)")
message(STATUS "If you want to enable Python/Numpy support, set the following variables:")
message(STATUS " PYTHON3_INCLUDE_PATH")
cmake: python, allow dynamic symbols lookup from libpython.so
9 years ago
message(STATUS " PYTHON3_LIBRARIES (optional on Unix-like systems)")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
message(STATUS " PYTHON3_NUMPY_INCLUDE_DIRS")
else()
# Attempt to discover the NumPy include directory. If this succeeds, then build python API with NumPy
`numpy.distutils` is removed in numpy 1.26 on Python 3.12. so we don't use numpy.distutils to get includes dirs of python-numpy
1 year ago
execute_process(COMMAND "${_executable}" -c "import numpy; print(numpy.get_include())"
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
RESULT_VARIABLE _numpy_process
OUTPUT_VARIABLE _numpy_include_dirs
OUTPUT_STRIP_TRAILING_WHITESPACE)
Normalize line endings and whitespace
12 years ago
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
if(NOT _numpy_process EQUAL 0)
unset(_numpy_include_dirs)
endif()
reorder the if's for clarity
11 years ago
endif()
merged all the latest changes from 2.4 to trunk
13 years ago
endif()
Normalize line endings and whitespace
12 years ago
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
if(_numpy_include_dirs)
file(TO_CMAKE_PATH "${_numpy_include_dirs}" _numpy_include_dirs)
if(CMAKE_CROSSCOMPILING)
if(NOT _numpy_version)
set(_numpy_version "undefined - cannot be probed because of the cross-compilation")
endif()
else()
execute_process(COMMAND "${_executable}" -c "import numpy; print(numpy.version.version)"
RESULT_VARIABLE _numpy_process
OUTPUT_VARIABLE _numpy_version
OUTPUT_STRIP_TRAILING_WHITESPACE)
reorder the if's for clarity
11 years ago
endif()
fix cross-compilation issue with Numpy
11 years ago
endif()
Merge pull request #24136 from komakai:visionos_support Add experimental support for Apple VisionOS platform #24136 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch This is dependent on cmake support for VisionOs which is currently in progress. Creating PR now to test that there are no regressions in iOS and macOS builds
12 months ago
endif(NOT ANDROID AND NOT IOS AND NOT XROS)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
endif()
# Export return values
cmake: fix python detection
9 years ago
set(${found} "${_found}" CACHE INTERNAL "")
FIx misc. source and comment typos Found via `codespell -q 3 -S ./3rdparty,./modules -L amin,ang,atleast,dof,endwhile,hist,uint` backporting of commit: 32aba5e64ba40b372f02b5fab18c9632f763bb75
5 years ago
set(${executable} "${_executable}" CACHE FILEPATH "Path to Python interpreter")
cmake: fix python detection
9 years ago
set(${version_string} "${_version_string}" CACHE INTERNAL "")
set(${version_major} "${_version_major}" CACHE INTERNAL "")
set(${version_minor} "${_version_minor}" CACHE INTERNAL "")
set(${libs_found} "${_libs_found}" CACHE INTERNAL "")
set(${libs_version_string} "${_libs_version_string}" CACHE INTERNAL "")
set(${libraries} "${_libraries}" CACHE INTERNAL "Python libraries")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
set(${library} "${_library}" CACHE FILEPATH "Path to Python library")
cmake: fix python detection
9 years ago
set(${debug_libraries} "${_debug_libraries}" CACHE INTERNAL "")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
set(${debug_library} "${_debug_library}" CACHE FILEPATH "Path to Python debug")
cmake: fix python detection
9 years ago
set(${include_path} "${_include_path}" CACHE INTERNAL "")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
set(${include_dir} "${_include_dir}" CACHE PATH "Python include dir")
set(${include_dir2} "${_include_dir2}" CACHE PATH "Python include dir 2")
Use STRING instead of PATH to fix #24141
1 year ago
set(${packages_path} "${_packages_path}" CACHE STRING "Where to install the python packages.")
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
set(${numpy_include_dirs} ${_numpy_include_dirs} CACHE PATH "Path to numpy headers")
cmake: fix python detection
9 years ago
set(${numpy_version} "${_numpy_version}" CACHE INTERNAL "")
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
endfunction(find_python)
python: support standalone Python bindings build - requires OpenCV source directory - requires OpenCV binary directory with built modules and 'python_bindings_generator' target
7 years ago
if(OPENCV_PYTHON_SKIP_DETECTION)
return()
endif()
Merge pull request #12725 from alalek:cmake_python_win32 * cmake: don't ignore Python from PATH environment variable - this breaks selection between 32/64-bit Python - this breaks Anaconda/Conda environments - it is not the CMake default behavior, expected by many projects * cmake: add Python version check, fallback path on CMake 3.12+ * cmake: drop Python 2.6, allow version selection for Python 3.x
6 years ago
option(OPENCV_PYTHON3_VERSION "Python3 version" "")
find_python("${OPENCV_PYTHON3_VERSION}" "${MIN_VER_PYTHON3}" PYTHON3_LIBRARY PYTHON3_INCLUDE_DIR
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
11 years ago
PYTHON3INTERP_FOUND PYTHON3_EXECUTABLE PYTHON3_VERSION_STRING
PYTHON3_VERSION_MAJOR PYTHON3_VERSION_MINOR PYTHON3LIBS_FOUND
PYTHON3LIBS_VERSION_STRING PYTHON3_LIBRARIES PYTHON3_LIBRARY
PYTHON3_DEBUG_LIBRARIES PYTHON3_LIBRARY_DEBUG PYTHON3_INCLUDE_PATH
PYTHON3_INCLUDE_DIR PYTHON3_INCLUDE_DIR2 PYTHON3_PACKAGES_PATH
PYTHON3_NUMPY_INCLUDE_DIRS PYTHON3_NUMPY_VERSION)
Manage Python Limited API version externally.
11 months ago
# Problem in numpy >=1.15 <1.17
OCV_OPTION(PYTHON3_LIMITED_API "Build with Python Limited API (not available with numpy >=1.15 <1.17)" NO
VISIBLE_IF PYTHON3_NUMPY_VERSION VERSION_LESS "1.15" OR NOT PYTHON3_NUMPY_VERSION VERSION_LESS "1.17")
if(PYTHON3_LIMITED_API)
Downgrade LIMITED_API_VERSION, if python3 is older than 3.6.
11 months ago
set(_default_ver "0x03060000")
if(PYTHON3_VERSION_STRING VERSION_LESS "3.6")
# fix for older pythons
set(_default_ver "0x030${PYTHON3_VERSION_MINOR}0000")
endif()
set(PYTHON3_LIMITED_API_VERSION ${_default_ver} CACHE STRING "Minimal Python version for Limited API")
Manage Python Limited API version externally.
11 months ago
endif()
fix build with python3 only
9 years ago
if(PYTHON_DEFAULT_EXECUTABLE)
set(PYTHON_DEFAULT_AVAILABLE "TRUE")
CMAKE: Improve python detection
6 years ago
elseif(PYTHON3_EXECUTABLE AND PYTHON3INTERP_FOUND)
fix build with python3 only
9 years ago
set(PYTHON_DEFAULT_AVAILABLE "TRUE")
set(PYTHON_DEFAULT_EXECUTABLE "${PYTHON3_EXECUTABLE}")
Removed old Python detection cruft. None of this should be relevant as of CMake 2.8.7.
11 years ago
endif()
Merge pull request #20370 from ddacw:stub-gen-next Python typing stub generation #20370 Add stub generation to `gen2.py`, addressing #14590. ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or other license that is incompatible with OpenCV - [x] The PR is proposed to proper branch - [x] There is reference to original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
2 years ago
if(PYTHON_DEFAULT_AVAILABLE)
execute_process(COMMAND ${PYTHON_DEFAULT_EXECUTABLE} --version
OUTPUT_VARIABLE PYTHON_DEFAULT_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REGEX MATCH "[0-9]+.[0-9]+.[0-9]+" PYTHON_DEFAULT_VERSION "${PYTHON_DEFAULT_VERSION}")
endif()