问题描述
我试着从C code调用Python函数,我跟着从的
Im trying to call python functions from C code, and i followed a sample from here
我也有正确的包含文件directries,图书馆directries和链接的python32.lib(使用python 32 IM),但是错误是,蟒蛇/ C API,如PyString_FromString,PyInt_FromLong,PyInt_AsLong是不确定的(在调试器错误)
I also have the correct include file directries, library directries, and linked the python32.lib (im using python 32) however the error was that python/C APIs such as PyString_FromString, PyInt_FromLong, PyInt_AsLong are undefined (error in the debugger)
这很奇怪,因为IM也在使用其他的API,但他们都很好...
this is strange because im also using other APIs, but they're all fine...
什么问题就在这里?
int
main(int argc, char *argv[])
{
PyObject *pName, *pModule, *pDict, *pFunc;
PyObject *pArgs, *pValue;
int i;
if (argc < 3) {
fprintf(stderr,"Usage: call pythonfile funcname [args]\n");
return 1;
}
Py_Initialize();
pName = PyString_FromString(argv[1]);
/* Error checking of pName left out */
pModule = PyImport_Import(pName);
Py_DECREF(pName);
if (pModule != NULL) {
pDict = PyModule_GetDict(pModule);
/* pDict is a borrowed reference */
Py_Initialize(),PyImport_Import(),PyModule_GetDict()所有工作正常,但不是PyString_FromString ...
Py_Initialize(), PyImport_Import(), PyModule_GetDict() all work fine, but not PyString_FromString...
推荐答案
这个例子code你采用的是古Python版本,2.3.2。 Python 3.x都有线不仅在语言但C API中也是如此。
The example code you used is for ancient Python version, 2.3.2. Python 3.x line introduced a number of incompatibilites not only in the language but in the C API as well.
您只需提在Python 3.2不复存在功能
The functions you mention simply no longer exist in Python 3.2.
PyString _
函数被重命名为 PyBytes _
。
PyInt _
功能都走了, PyLong _
应改为使用。
PyInt_
functions are gone, PyLong_
should be used instead.
下面是相同的例子,你已经使用,但对于Python 3:
Here's the same example that you've used but for Python 3:
请注意,它的使用 PyUni code _
而不是 PyString_ / PyBytes _
。在许多地方的Python 2.x的使用字节串,Python 3.x都有使用UNI code字符串。
Note that it's using PyUnicode_
instead of PyString_/PyBytes_
. In many places where Python 2.x used byte strings, Python 3.x uses unicode strings.
顺便说一句,我通常使用此页面来查找所有可能的呼叫:
By the way, I usually use this page to look up all possible calls:
这篇关于Python嵌入的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!