可通过C API访问酸洗程序吗? [英] Pickling routines accessible through the C API?
问题描述
我想从c ++代码中调用Python的酸洗例程(dumps
和loads
).它们在官方API中公开吗?我目前正在通过c ++中的boost :: python来调用它们,也许正在寻找一种更简单的方法.
I would like to call Python's pickling routines (dumps
and loads
) from within c++ code. Are they exposed in the official API? I am currently calling those via boost::python from c++, looking for a simpler way perhaps.
推荐答案
您可以通过C API调用任何 Python代码:
You can call any Python code through the C API:
static PyObject *module = NULL;
PyObject *pickle;
if (module == NULL &&
(module = PyImport_ImportModuleNoBlock("pickle")) == NULL)
return NULL;
现在,您可以这样称呼它:
now, you can either call it like:
pickle = PyObject_CallMethodObjArgs(module,
PyString_AS_STRING("dumps"),
py_object_to_dump,
NULL);
pickle = PyObject_CallMethodObjArgs(module,
PyUnicode_FromString("dumps"),
py_object_to_dump,
NULL);
或类似的
picle = PyObject_CallMethod(module, "dumps", "O", py_object_to_dump);
,然后进行错误检查和清理:
and then do the error checking and clean up:
if (pickle != NULL) { ... }
Py_XDECREF(pickle);
,但对于pickle
,您可以仅使用 cPickle
直接起作用.唯一的问题是cPickle
模块(或Python 3中的_pickle
)被静态编译到Python二进制文件中,或者需要单独加载.在这里使用Python导入机制更加简单.
but in the case of pickle
you can just use the cPickle
functions directly. The only problem there is that the cPickle
module (or _pickle
in Python 3) is statically compiled into the Python binary, or needs to be loaded separately. Using the Python import mechanisms is simply easier here.
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