diff --git a/bindings/python/CMakeLists.txt b/bindings/python/CMakeLists.txt index 0b9b3ebe7..74e608901 100644 --- a/bindings/python/CMakeLists.txt +++ b/bindings/python/CMakeLists.txt @@ -1,7 +1,6 @@ # To build python bindings we need a python executable and boost python module. Unfortunately, # their names might not be interlinked and we can not implement a general solution. -# The code below assumes default boost installation, when the module for python 2 is named -# 'python' and the module for python 3 is named 'python3'. +# The code below assumes default boost installation, when the module for python 3 is named 'python3'. # To customize that one can provide a name for the Boost::python module via # 'boost-python-module-name' variable when invoking cmake. # E.g. on Gentoo with python 3.6 and Boost::python library name 'libboost_python-3.6.so' @@ -15,12 +14,9 @@ # Sets _ret to a list of python versions (major.minor) that use the same MSVC runtime as this build does # assumes MSVC was detected already # See https://en.wikipedia.org/wiki/Microsoft_Visual_C++#Internal_version_numbering +# See https://devguide.python.org/#status-of-python-branches for supported python versions function(_get_compatible_python_versions _ret) - if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 15 AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 16) - list(APPEND _tmp 2.6 2.7 3.0 3.1 3.2) - elseif(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 16 AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 17) - list(APPEND _tmp 3.3 3.4) - elseif(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19 AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 20) + if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19 AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 20) list(APPEND _tmp 3.5 3.6 3.7 3.8) endif() set(${_ret} ${_tmp} PARENT_SCOPE) @@ -31,31 +27,26 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC" AND NOT skip-python-runtime-test) _get_compatible_python_versions(Python_ADDITIONAL_VERSIONS) endif() -find_package(PythonInterp REQUIRED) +find_package(Python3 COMPONENTS Interpreter Development REQUIRED) if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC" AND NOT skip-python-runtime-test) - message(STATUS "Testing found python version. Requested: ${Python_ADDITIONAL_VERSIONS}, found: ${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}") - if (NOT "${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}" IN_LIST Python_ADDITIONAL_VERSIONS) - message(FATAL_ERROR "Incompatible Python and C runtime: MSVC ${CMAKE_CXX_COMPILER_VERSION} and Python ${PYTHON_VERSION_STRING}") + message(STATUS "Testing found python version. Requested: ${Python_ADDITIONAL_VERSIONS}, found: ${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR}") + if (NOT "${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR}" IN_LIST Python_ADDITIONAL_VERSIONS) + message(FATAL_ERROR "Incompatible Python and C runtime: MSVC ${CMAKE_CXX_COMPILER_VERSION} and Python ${Python3_VERSION}") endif() endif() -set(Python_ADDITIONAL_VERSIONS "${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}") -find_package(PythonLibs REQUIRED) +set(Python_ADDITIONAL_VERSIONS "${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR}") if (NOT boost-python-module-name) # use active python - if (PYTHON_VERSION_STRING VERSION_GREATER_EQUAL "3") - set(_boost-python-module-name "python${PYTHON_VERSION_MAJOR}") - else() - set(_boost-python-module-name "python") # to overwrite possible value from a previous run - endif() + set(_boost-python-module-name "python${Python3_VERSION_MAJOR}") endif() set(boost-python-module-name ${_boost-python-module-name} CACHE STRING "Boost:python module name, e.g. 'pythom-3.6'") find_package(Boost REQUIRED COMPONENTS ${boost-python-module-name}) -python_add_module(python-libtorrent +Python3_add_library(python-libtorrent STATIC src/module.cpp src/sha1_hash.cpp src/converters.cpp @@ -80,12 +71,12 @@ python_add_module(python-libtorrent set_target_properties(python-libtorrent PROPERTIES - OUTPUT_NAME libtorrent + OUTPUT_NAME torrent ) target_include_directories(python-libtorrent PRIVATE - ${PYTHON_INCLUDE_DIRS} + ${Python3_INCLUDE_DIRS} ) string(TOUPPER "${boost-python-module-name}" boost_python_module_name_uppercase) @@ -96,7 +87,7 @@ target_link_libraries(python-libtorrent # Boost::python adds that but without a path to the library. Therefore we have to either # provide the path (but, unfortunately, FindPythonLibs.cmake does not return the library dir), # or give the full file name here (this FindPythonLibs.cmake provides to us). - ${PYTHON_LIBRARIES} + ${Python3_LIBRARIES} ) # Bindings module uses deprecated libtorrent features, thus we disable these warnings @@ -108,7 +99,7 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang") endif() execute_process(COMMAND - ${PYTHON_EXECUTABLE} -c "import distutils.sysconfig; + ${Python3_EXECUTABLE} -c "import distutils.sysconfig; print(';'.join(map(str, [ distutils.sysconfig.get_python_lib(plat_specific=True, prefix=''), distutils.sysconfig.get_config_var('EXT_SUFFIX') @@ -119,13 +110,11 @@ list(GET _python_sysconfig_vars 0 PYTHON_SITE_PACKAGES) list(GET _python_sysconfig_vars 1 PYTHON_EXT_SUFFIX) message(STATUS "Python site packages: ${PYTHON_SITE_PACKAGES}") -# python 2 does not provide the 'EXT_SUFFIX' sysconfig variable, so we use cmake default then -if (NOT "${PYTHON_EXT_SUFFIX}" STREQUAL "None") - message(STATUS "Python extension suffix: ${PYTHON_EXT_SUFFIX}") - # we mimic the name, created by setuptools - # example: libtorrent.cpython-36m-x86_64-linux-gnu.so - set_target_properties(python-libtorrent PROPERTIES SUFFIX ${PYTHON_EXT_SUFFIX}) -endif() + +message(STATUS "Python extension suffix: ${PYTHON_EXT_SUFFIX}") +# we mimic the name, created by setuptools +# example: libtorrent.cpython-36m-x86_64-linux-gnu.so +set_target_properties(python-libtorrent PROPERTIES SUFFIX ${PYTHON_EXT_SUFFIX}) set(SETUP_PY_IN "${CMAKE_CURRENT_SOURCE_DIR}/setup.py.cmake.in") set(SETUP_PY "${CMAKE_CURRENT_BINARY_DIR}/setup.py") @@ -135,8 +124,8 @@ set(DEPS python-libtorrent "${SETUP_PY}") configure_file(${SETUP_PY_IN} ${SETUP_PY} @ONLY) add_custom_command(OUTPUT ${OUTPUT} - COMMAND ${PYTHON_EXECUTABLE} ${SETUP_PY} build -b "${CMAKE_CURRENT_SOURCE_DIR}" - COMMAND ${PYTHON_EXECUTABLE} ${SETUP_PY} egg_info -b "${CMAKE_CURRENT_SOURCE_DIR}" + COMMAND ${Python3_EXECUTABLE} ${SETUP_PY} build -b "${CMAKE_CURRENT_SOURCE_DIR}" + COMMAND ${Python3_EXECUTABLE} ${SETUP_PY} egg_info -b "${CMAKE_CURRENT_SOURCE_DIR}" COMMAND ${CMAKE_COMMAND} -E touch ${OUTPUT} DEPENDS ${DEPS})