问题描述
我有一个C ++模块，我已经使用Pybind11成功地将其公开给python。
问题是我正在Windows 10下使用VS2019进行编译，我希望该模块可在Windows 7下使用。
不幸的是，在Windows 7计算机上的同一干净的python发行版中安装模块时，出现ImportError: DLL load Failed错误。
当我在Windows 10下重复该过程时，一切按预期进行。因此，我想这可能与VS参数有关，以使dll具有逆向兼容性或类似的功能。
我的setup.py文件是这样的：
import os
import re
import pathlib
import numpy
import sys
from sysconfig import get_paths
from setuptools import setup,Extension
from setuptools.command.build_ext import build_ext as build_ext_orig
class CMakeExtension(Extension):
def __init__(self,name):
# don't invoke the original build_ext for this special extension
super().__init__(name,sources=[])
class build_ext(build_ext_orig):
def run(self):
# Add numpy headers to include_dirs
# self.include_dirs.append(numpy.get_include())
for ext in self.extensions:
# ext.include_dirs.insert(0,numpy.get_include())
self.build_cmake(ext)
super().run()
def build_cmake(self,ext):
# add the numpy include folder of associated to the numpy installed in the python executing this script
ext.include_dirs.insert(0,numpy.get_include())
cwd = pathlib.Path().absolute()
# these dirs will be created in build_py,so if you don't have
# any python sources to bundle,the dirs will be missing
build_temp = pathlib.Path(self.build_temp)
build_temp.mkdir(parents=True,exist_ok=True)
# extdir = pathlib.Path(self.get_ext_fullpath(ext.name))
extdir = pathlib.Path(pathlib.PurePath(self.get_ext_fullpath(ext.name)).with_suffix(''))
extdir.mkdir(parents=True,exist_ok=True)
# example of cmake args
config = 'Debug' if self.debug else 'Release'
path_info = get_paths()
cmake_args = [
'-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=' + str(extdir.parent.absolute()),# LIBRARY_OUTPUT_DIRECTORY
'-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=' + str(extdir.parent.absolute()),# LIBRARY_OUTPUT_DIRECTORY
'-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_DEBUG=' + str(extdir.parent.absolute()),# LIBRARY_OUTPUT_DIRECTORY
'-DWITH_PYTHON_MODULE=ON','-DCMAKE_BUILD_TYPE=' + config,# python executable path of the python that executes this script
'-DPYTHON_EXECUTABLE=' + sys.executable,# path to the python include folder of the python that executes this script
'-DPYTHON_LIBRARY=' + path_info['include'],# properly pass the numpy include (works under windows too)
'-DPython_NumPy_FOUND=True','-DPython_NumPy_INCLUDE_Dirs=' + numpy.get_include()
]
# example of build args
build_args = [
'--config',config,'--target','NewtonNative'
]
# We can handle some platform-specific settings at our discretion
if os.name == 'nt':
cmake_args += [
# These options are likely to be needed under Windows
'-DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=TRUE','-DCMAKE_RUNTIME_OUTPUT_DIRECTORY_{}={}'.format(config.upper(),extdir),# python executable path of the python that executes this script
# '-DPYTHON_EXECUTABLE=' + sys.executable,# path to the python include folder of the python that executes this script
# '-DPYTHON_LIBRARY=' + path_info['include'],]
os.chdir(str(build_temp))
self.spawn(['cmake',str(cwd)] + cmake_args)
if not self.dry_run:
self.spawn(['cmake','--build','.'] + build_args)
# Troubleshooting: if fail on line above then delete all possible
# temporary CMake files including "CMakeCache.txt" in top level dir.
os.chdir(str(cwd))
def read_version(fname):
"""
Read the version from the CMake file
:param fname: file name
:return: version string
"""
version = "0.1.0" # set a default version
with open(fname) as file:
for l in file:
if 'NewtonNative' in l and 'VERSION' in l:
version = re.search('"(.*)"',l).group(1)
return version
return version
__version__ = read_version(os.path.join('src','CMakeLists.txt'))
setup(name='NewtonNative',version=__version__,author='',author_email='',url='',description='',long_description='',ext_modules=[CMakeExtension('NewtonNative')],cmdclass={'build_ext': build_ext},install_requires=['pybind11>=2.4'],setup_requires=['pybind11>=2.4'],include_dirs=[numpy.get_include()],zip_safe=False)
如何为多个Windows版本进行编译？
我猜这应该可行，因为numpy和其他扩展名设法为所有Windows操作系统提供一个版本，并且仅取决于python版本。
解决方法
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