我正在尝试将 OpenEXR 的 python 绑定安装（编译）到我的模块。我正在使用 Python 3.8.0。首先，我只是简单地尝试过pip install openexr导致在 OpenEXR 的 C++ 安装中缺少头文件而导致的错误。所以我已经安装了 vcpkg 和 OpenEXR 的东西。执行
pip install --global-option=build_ext --global-option="-IC:\vcpkg\packages\openexr_x86-windows\include\OpenEXR" --global-option="-LC:\vcpkg\packages\openexr_x86-windows\lib" openexr
OpenEXR.cpp由于Python 绑定中的语法错误而失败。我已经从这里手动下载了模块并尝试安装/编译它，这会导致同一文件中出现相同的语法错误。
我的 Visual Studio 在文件中没有发现任何问题，所以我假设问题一定是 pip 用于安装该模块的 C++ 编译器。我安装了 Buildtools 2019 并添加了 2017 的，但没有帮助。我想我必须为 pip 指定编译器，但在这里我在互联网上找不到任何关于这样做的示例。
我的问题：你如何指定 pip 用来安装 OpenEXR 的编译器？
提到的语法错误：
C:\Users\alexa\PycharmProjects\Test\venv\lib\site-packages\pip-19.0.3-py3.8.egg\pip\_internal\commands\install.py:207: UserWarning: Disabling all use of wheels due to the use of --build-options / --global-options / --install-options.
cmdoptions.check_install_build_global(options)
Collecting openexr
Using cached https://files.pythonhosted.org/packages/7c/c4/76bf884f59d3137847edf8b93aaf40f6257d8315d0064e8b1a606ad80b1b/OpenEXR-1.3.2.tar.gz
Installing collected packages: openexr
Running setup.py install for openexr ... error
Complete output from command C:\Users\alexa\PycharmProjects\Test\venv\Scripts\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\alexa\\AppData\\Local\\Temp\\pip-install-81q20tqc\\openexr\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" build_ext -IC:\vcpkg\packages\openexr_x86-windows\include\OpenEXR -LC:\vcpkg\packages\openexr_x86-windows\lib install --record C:\Users\alexa\AppData\Local\Temp\pip-record-gjbp0u64\install-record.txt --single-version-externally-managed --compile --install-headers C:\Users\alexa\PycharmProjects\Test\venv\include\site\python3.8\openexr:
running build_ext
building 'OpenEXR' extension
creating build
creating build\temp.win32-3.8
creating build\temp.win32-3.8\Release
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.21.27702\bin\HostX86\x86\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -I/usr/include/OpenEXR -I/usr/local/include/OpenEXR -I/opt/local/include/OpenEXR -IC:\vcpkg\packages\openexr_x86-windows\include\OpenEXR -IC:\Users\alexa\PycharmProjects\Test\venv\include -IC:\Users\alexa\AppData\Local\Programs\Python\Python38-32\include -IC:\Users\alexa\AppData\Local\Programs\Python\Python38-32\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.21.27702\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.21.27702\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\cppwinrt" /EHsc /TpOpenEXR.cpp /Fobuild\temp.win32-3.8\Release\OpenEXR.obj -g -DVERSION="1.3.2"
cl : Command line warning D9002 : ignoring unknown option '-g'
OpenEXR.cpp
OpenEXR.cpp(1011): warning C4244: 'argument': conversion from 'double' to 'const T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1025): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1024): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1027): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1026): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1035): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1035): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1082): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1081): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1084): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1083): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1086): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1085): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1088): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1087): warning C4244: 'argument': conversion from 'double' to 'T', possible loss of data
with
[
T=float
]
OpenEXR.cpp(1241): error C2143: syntax error: missing ')' before 'constant'
OpenEXR.cpp(1241): error C2664: 'PyObject *PyBytes_FromString(const char *)': cannot convert argument 1 from 'double' to 'const char *'
OpenEXR.cpp(1241): error C2660: 'PyDict_SetItemString': function does not take 2 arguments
C:\Users\alexa\AppData\Local\Programs\Python\Python38-32\include\dictobject.h(58): note: see declaration of 'PyDict_SetItemString'
OpenEXR.cpp(1241): error C2143: syntax error: missing ';' before 'constant'
OpenEXR.cpp(1241): error C2059: syntax error: ')'
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.21.27702\\bin\\HostX86\\x86\\cl.exe' failed with exit status 2
----------------------------------------
您可以在此处找到 Python 3 和 2 的 OpenEXR 绑定的二进制文件。无论如何，如果有人知道如何调整 pip 完成的编译过程以使其工作，请分享。