问题描述
我有一个C ++库,已使用Pybind11成功地将其公开给python。
在CmakeLists.txt
文件中,我添加了如下的numpy include:
include_directories("C:\\python37\\Lib\\site-packages\\numpy\\core\\include")
这有效,但是不受欢迎。我想从我的setup.py
文件中传递numpy include目录。
import os
import re
import sys
import sysconfig
import platform
import subprocess
from distutils.version import LooseVersion
from setuptools import setup,Extension
from setuptools.command.build_ext import build_ext
class CMakeExtension(Extension):
def __init__(self,name,sourcedir=''):
Extension.__init__(self,sources=[])
self.sourcedir = os.path.abspath(sourcedir)
class CMakeBuild(build_ext):
def run(self):
try:
out = subprocess.check_output(['cmake','--version'])
except OSError:
raise RuntimeError(
"CMake must be installed to build the following extensions: " +
",".join(e.name for e in self.extensions))
if platform.system() == "Windows":
cmake_version = LooseVersion(re.search(r'version\s*([\d.]+)',out.decode()).group(1))
if cmake_version < '3.1.0':
raise RuntimeError("CMake >= 3.1.0 is required on Windows")
for ext in self.extensions:
self.build_extension(ext)
def build_extension(self,ext):
extdir = os.path.abspath(
os.path.dirname(self.get_ext_fullpath(ext.name)))
cmake_args = ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=' + extdir,'-DPYTHON_EXECUTABLE=' + sys.executable]
cfg = 'Debug' if self.debug else 'Release'
build_args = ['--config',cfg]
if platform.system() == "Windows":
cmake_args += ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{}={}'.format(
cfg.upper(),extdir)]
if sys.maxsize > 2**32:
cmake_args += ['-A','x64']
build_args += ['--','/m']
else:
cmake_args += ['-DCMAKE_BUILD_TYPE=' + cfg]
build_args += ['--','-j2']
env = os.environ.copy()
env['CXXFLAGS'] = '{} -DVERSION_INFO=\\"{}\\"'.format(
env.get('CXXFLAGS',''),self.distribution.get_version())
if not os.path.exists(self.build_temp):
os.makedirs(self.build_temp)
subprocess.check_call(['cmake',ext.sourcedir] + cmake_args,cwd=self.build_temp,env=env)
subprocess.check_call(['cmake','--build','.'] + build_args,cwd=self.build_temp)
print() # Add an empty line for cleaner output
setup(
name='python_cpp_example',version='0.1',author='Benjamin Jack',author_email='benjamin.r.jack@gmail.com',description='A hybrid Python/C++ test project',long_description='',# add extension module
ext_modules=[CMakeExtension('python_cpp_example')],# add custom build_ext command
cmdclass=dict(build_ext=CMakeBuild),zip_safe=False,)
研究了诸如this之类的一些SO问题之后,我知道您可以使用numpy.get_include()
获得numpy include目录。
但是,将包含目录添加到函数build_extension
中带有此行ext.include_dirs.append(numpy.get_include())
的路径中似乎无效。
我想知道如何正确地传递包含目录。
解决方法
我想将此添加为评论,但由于缺乏所需的声誉,我不能这样做:
您的cmake构建是使用错误的numpy路径还是根本找不到numpy?如果路径错误,则可以尝试添加前缀而不是添加numpy.get_include()
:
ext.include_dirs.insert(0,numpy.get_include())