嵌入python:版本与ProgramFullPath不一致 [英] Embedding python: Version inconsistent with ProgramFullPath

问题描述

我首先使用anaconda Python，但是一个简单的Python嵌入示例显示了我的Mac系统python版本，即使ProgramFullPath正确指向anaconda python.有没有一种方法可以正确地找到/使用蟒蛇蟒蛇?

I have anaconda Python first on my path, but a simple Python embedding example shows my Mac system python version instead, even though ProgramFullPath correctly points to anaconda python. Is there a way to correctly find / use anaconda python?

最小示例:

#include <Python.h>
#include <stdio.h>

int main(void) {
    Py_Initialize();
    printf("Python version:\n%s\n", Py_GetVersion());
    printf("Python Program Full Path:\n%s\n", Py_GetProgramFullPath());
    Py_Finalize();
    return 0;
}

我编译，

gcc `python-config --cflags` example.c `python-config --ldflags`

或扩展python-config调用的结果，

gcc -I/Users/ryandwyer/anaconda/include/python2.7 \
    -I/Users/ryandwyer/anaconda/include/python2.7 \
    -fno-strict-aliasing -I/Users/ryandwyer/anaconda/include \
    -arch x86_64 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes \
    example.c -lpython2.7 -ldl -framework CoreFoundation -u _PyMac_Error

运行程序会给出

Python version:
2.7.5 (default, Mar  9 2014, 22:15:05) 
[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)]
Python Program Full Path:
/Users/ryandwyer/anaconda/bin/python

这似乎与在c ++中嵌入python相同:选择python版本.我也尝试设置PYTHONHOME，Py_SetProgramName，Py_SetPythonHome，但无法获取Python_GetVersion()返回anaconda版本.

This seems to be the same problem as Embed python in c++: choose python version. I have also tried setting PYTHONHOME, Py_SetProgramName, Py_SetPythonHome, but cannot get Python_GetVersion() to return the anaconda version.

推荐答案

您链接的帖子中有部分答案.

There was a partial answer in the post you linked.

选项1:如下运行程序

LD_LIBRARY_PATH =/path_to_anaconda/lib ./程序

LD_LIBRARY_PATH=/path_to_anaconda/lib ./program

选项2:在终端中运行以下命令，然后运行程序

Option 2: Run the following command in the terminal, then run your program

导出LD_LIBRARY_PATH =/path_to_anaconda/lib ./程序

export LD_LIBRARY_PATH=/path_to_anaconda/lib ./program

选项3::将以下行添加到.bashrc文件的末尾

Option 3: Add the following line to the end of your .bashrc file

LD_LIBRARY_PATH =/path_to_anaconda/lib

LD_LIBRARY_PATH=/path_to_anaconda/lib

为什么在嵌入python时需要这样做，但在正常运行解释器时却不需要这样做?我不知道，但是如果有些Python/C向导在这篇文章上绊倒了，我很想知道为什么.

Why do you have to do this when embedding python, but not when running the interpreter normally? I have no idea, but if some Python/C wizard stumbles on this post I'd love to know why.

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