Pybind11 cannot integrate with Qt 6.9.1

Question

I included Qt 6.9.1 header files and pybind11/pybind11.h in a same file. but then I use python to build a package.(the compiler is MSVC2022 x64 and I only use CMake)

this is part of setup.py:

import os
import re
import subprocess
import sys
from time import gmtime, strftime, time
from pathlib import Path

from setuptools import Extension, setup
from setuptools.command.build_ext import build_ext

# Convert distutils Windows platform specifiers to CMake -A arguments
PLAT_TO_CMAKE = {
    "win32": "Win32",
    "win-amd64": "x64",
    "win-arm32": "ARM",
    "win-arm64": "ARM64",
}

# A CMakeExtension needs a sourcedir instead of a file list.
# The name must be the _single_ output extension from the CMake build.
# If you need multiple extensions, see scikit-build.
class CMakeExtension(Extension):
    def __init__(self, name: str, sourcedir: str = "") -> None:
        super().__init__(name, sources=[])
        self.sourcedir = os.fspath(Path(sourcedir).resolve())


class CMakeBuild(build_ext):
    def build_extension(self, ext: CMakeExtension) -> None:
        # Must be in this form due to bug in .resolve() only fixed in Python 3.10+
        ext_fullpath = Path.cwd() / self.get_ext_fullpath(ext.name)
        extdir = ext_fullpath.parent.resolve() / MODULE_NAME

        # Using this requires trailing slash for auto-detection & inclusion of
        # auxiliary "native" libs

        debug = int(os.environ.get("DEBUG", 0)) if self.debug is None else self.debug
        cfg = "Debug" if debug else "Release"

        # CMake lets you override the generator - we need to check this.
        # Can be set with Conda-Build, for example.
        cmake_generator = os.environ.get("CMAKE_GENERATOR", "")

        # Set Python_EXECUTABLE instead if you use PYBIND11_FINDPYTHON
        # EXAMPLE_VERSION_INFO shows you how to pass a value into the C++ code
        # from Python.
        cmake_args = [
            f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={extdir}{os.sep}",
            f"-DPYTHON_EXECUTABLE={sys.executable}",
            f"-DCMAKE_BUILD_TYPE={cfg}",  # not used on MSVC, but no harm
            # "-C "
        ]
        build_args = []
        # Adding CMake arguments set as environment variable
        # (needed e.g. to build for ARM OSx on conda-forge)
        if "CMAKE_ARGS" in os.environ:
            cmake_args += [item for item in os.environ["CMAKE_ARGS"].split(" ") if item]

        # In this example, we pass in the version to C++. You might not need to.
        cmake_args += [f"-DEXAMPLE_VERSION_INFO={self.distribution.get_version()}"]
        
        if self.compiler.compiler_type != "msvc":
            # Using Ninja-build since it a) is available as a wheel and b)
            # multithreads automatically. MSVC would require all variables be
            # exported for Ninja to pick it up, which is a little tricky to do.
            # Users can override the generator with CMAKE_GENERATOR in CMake
            # 3.15+.
            if not cmake_generator or cmake_generator == "Ninja":
                try:
                    import ninja

                    ninja_executable_path = Path(ninja.BIN_DIR) / "ninja"
                    cmake_args += [
                        "-GNinja",
                        f"-DCMAKE_MAKE_PROGRAM:FILEPATH={ninja_executable_path}",
                    ]
                except ImportError:
                    pass

        else:
            # Single config generators are handled "normally"
            single_config = any(x in cmake_generator for x in {"NMake", "Ninja"})

            # CMake allows an arch-in-generator style for backward compatibility
            contains_arch = any(x in cmake_generator for x in {"ARM", "Win64"})

            # Specify the arch if using MSVC generator, but only if it doesn't
            # contain a backward-compatibility arch spec already in the
            # generator name.
            if not single_config and not contains_arch:
                cmake_args += ["-A", PLAT_TO_CMAKE[self.plat_name]]

            # Multi-config generators have a different way to specify configs
            if not single_config:
                cmake_args += [
                    f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{cfg.upper()}={extdir}"
                ]
                build_args += ["--config", cfg]

        if sys.platform.startswith("darwin"):
            # Cross-compile support for macOS - respect ARCHFLAGS if set
            archs = re.findall(r"-arch (\S+)", os.environ.get("ARCHFLAGS", ""))
            if archs:
                cmake_args += ["-DCMAKE_OSX_ARCHITECTURES={}".format(";".join(archs))]

        # Set CMAKE_BUILD_PARALLEL_LEVEL to control the parallel build level
        # across all generators.
        if "CMAKE_BUILD_PARALLEL_LEVEL" not in os.environ:
            # self.parallel is a Python 3 only way to set parallel jobs by hand
            # using -j in the build_ext call, not supported by pip or PyPA-build.
            if hasattr(self, "parallel") and self.parallel:
                # CMake 3.12+ only.
                build_args += [f"-j{self.parallel}"]

        build_temp = Path(self.build_temp) / ext.name
        if not build_temp.exists():
            build_temp.mkdir(parents=True)

        subprocess.run(
            ["cmake", ext.sourcedir, *cmake_args], cwd=build_temp, check=True
        )
        subprocess.run(
            ["cmake", "--build", ".", *build_args], cwd=build_temp, check=True
        )

the binding file:


#include <UDFrameless.h> //the header file I included Qt library files
#include<pybind11/pybind11.h>
#include<pybind11/embed.h> //I tried PYBIND11_MODULE and it is also occurs errors
namespace py=pybind11;
PYBIND11_EMBEDDED_MODULE(UDFrameless, mod) {
    mod.doc() = "cxxtestpy module";
    // mod.def("setWindowEffect",&UDFrameless::setWindowEffect,py::arg("hwnd"),py::arg("key"),py::arg("enable"));

    
}

the error output:(It's in Chinese)

running build
running build_ext
-- G:/Qt/6.9.1/msvc2022_64/
-- pybind11 v3.0.1 
Using compatibility mode for Python, set PYBIND11_FINDPYTHON to NEW/OLD to silence this message
-- Configuring done (0.8s)
-- Generating done (0.1s)
-- Build files have been written to: E:/pybind-test/build/temp.win-amd64-cpython-312/Release/pybind-test
适用于 .NET Framework MSBuild 版本 17.14.18+a338add32

  cxxtest.cpp
  cxxtest.vcxproj -> E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\lib\Release\cxxtest.lib
  bindings.cpp
E:\Python312\include\object.h(352,23): error C2059: 语法错误:“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bindings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\Python312\include\object.h(352,23): error C2238: 意外的标记位于“;”之前 [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bindings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\detail\function_record_pyobject.h(86,7): error C2078: 初始值设定项太多 [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-tes
t\bindings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\detail\function_record_pyobject.h(91,8): error C2078: 初始值设定项太多 [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-tes
t\bindings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1394,20): error C2760: 语法错误: 此处出现意外的“++”；应为“,” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bin
dings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1394,22): error C2760: 语法错误: 此处出现意外的“]”；应为“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bind
ings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1394,22): error C3878: 语法错误:“expression-statement”后出现意外标记“]” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\p
ybind-test\bindings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1394,89): error C2760: 语法错误: 此处出现意外的“}”；应为“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bind
ings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1397,24): error C2760: 语法错误: 此处出现意外的“++”；应为“,” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bin
dings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1397,26): error C2760: 语法错误: 此处出现意外的“]”；应为“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bind
ings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1397,26): error C3878: 语法错误:“expression-statement”后出现意外标记“]” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\p
ybind-test\bindings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1397,77): error C2760: 语法错误: 此处出现意外的“}”；应为“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bind
ings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1401,20): error C2760: 语法错误: 此处出现意外的“++”；应为“,” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bin
dings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1401,22): error C2760: 语法错误: 此处出现意外的“]”；应为“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bind
ings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1401,22): error C3878: 语法错误:“expression-statement”后出现意外标记“]” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\p
ybind-test\bindings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1401,86): error C2760: 语法错误: 此处出现意外的“}”；应为“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bind
ings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1411,20): error C2760: 语法错误: 此处出现意外的“++”；应为“,” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bin
dings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1411,22): error C2760: 语法错误: 此处出现意外的“]”；应为“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bind
ings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1411,22): error C3878: 语法错误:“expression-statement”后出现意外标记“]” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\p
ybind-test\bindings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\pybind11\include\pybind11\pybind11.h(1411,37): error C2760: 语法错误: 此处出现意外的“}”；应为“;” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bind
ings\cxxtestpy.vcxproj]
  (编译源文件“../../../../../bindings/bindings.cpp”)

E:\pybind-test\bindings\bindings.cpp(8,1): error C2513: “std::array<PyModuleDef_Slot,5>”: 在“=”前没有声明变量 [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bindings\
cxxtestpy.vcxproj]
E:\pybind-test\bindings\bindings.cpp(8,1): error C2059: 语法错误:“(” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bindings\cxxtestpy.vcxproj]
E:\pybind-test\bindings\bindings.cpp(8,1): error C2143: 语法错误: 缺少“;”(在“}”的前面) [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bindings\cxxtestpy.vcxproj]
E:\pybind-test\bindings\bindings.cpp(8,1): error C2059: 语法错误:“return” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bindings\cxxtestpy.vcxproj]
E:\pybind-test\bindings\bindings.cpp(8,1): error C2059: 语法错误:“}” [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bindings\cxxtestpy.vcxproj]
E:\pybind-test\bindings\bindings.cpp(8,1): error C3861: “pybind11_init_cxxtestpy”: 找不到标识符 [E:\pybind-test\build\temp.win-amd64-cpython-312\Release\pybind-test\bindings\cxxtestpy.vc
xproj]

I want to solve the problem

Oleksii Kyslytsyn · Accepted Answer · 2025-08-22 12:59:33Z

0

update the pybind11 repository and this issue disappears.

edited Aug 22 at 12:59

Oleksii Kyslytsyn

2,3603 gold badges40 silver badges61 bronze badges

answered Aug 22 at 12:55

admbrill

113 bronze badges

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