pybind回调功能生成
我正在为C ++函数编写Python绑定代码：
void cls::acceptCall(My::namespace::Reply reply)
{
std::cout <<__FUNCTION__ << std::endl;
reply(My::namespace::Result::Ok, nullptr);
}
using Reply = std::function<void(Result result, std::exception_ptr error)>;
enum class Result {Ok,NOT_OK }
绑定代码：
py::class_<APIExtProvider>(m, "APIExtProvider")
.def("acceptCall", &APIExtProvider::acceptCall, py::call_guard<py::gil_scoped_release>())
Python_call：
result = pyunifiedphone.Result.OK
exception = pyunifiedphone.Exception()
def reply_method(result, exception):
return None
provider.acceptCall(reply_method)
但是，我得到此错误：
typeError：acceptCall（）：不兼容的函数参数。支持以下参数类型： 1。（self：pyunifiedphone.apiextprovider，arg1：callable [[pyunifiedphone.result，pyunifiedphone.exception]，none]）） - ＆gt;没有
调用：＆lt; pyunifiedphone.apiextprovider对象，请访问0x7f2b6aa149b0＆gt; ,,＆lt; function reply_method at 0x7f2b6abfa1f0＆gt; gt; gt;
正确的绑定方式是什么？
I am writing Python binding code for a C++ function:
void cls::acceptCall(My::namespace::Reply reply)
{
std::cout <<__FUNCTION__ << std::endl;
reply(My::namespace::Result::Ok, nullptr);
}
using Reply = std::function<void(Result result, std::exception_ptr error)>;
enum class Result {Ok,NOT_OK }
bind code:
py::class_<APIExtProvider>(m, "APIExtProvider")
.def("acceptCall", &APIExtProvider::acceptCall, py::call_guard<py::gil_scoped_release>())
python_call:
result = pyunifiedphone.Result.OK
exception = pyunifiedphone.Exception()
def reply_method(result, exception):
return None
provider.acceptCall(reply_method)
However, I get this error:
TypeError: acceptCall(): incompatible function arguments. The following argument types are supported:
1. (self: pyunifiedphone.APIExtProvider, arg1: Callable[[pyunifiedphone.Result, pyunifiedphone.Exception], None]) -> None
Invoked with: <pyunifiedphone.APIExtProvider object at 0x7f2b6aa149b0>, , <function reply_method at 0x7f2b6abfa1f0>
What is the correct way of binding?
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不幸的是，PYBIND11不会自动将数据类型从C/C ++转换为Python。
将此标头文件添加到您的项目中，然后再次测试。如果它不起作用，则应将数据转换为可约束类型。
unfortunately pybind11 does not auto convert data types from c/c++ to python .
add this header files to your project and test again . if it did not work , you should convert your data to a bindable type .