[英]Embedding Python 3.3 in C++ from zipped standard library on Windows XP
I want to embed Python 3.3.4 in my C++ application so that: 我想在我的C ++应用程序中嵌入Python 3.3.4,以便:
And, in fact, I've almost managed to do it right. 而且,事实上,我几乎成功地做到了。 The only thing that still does not work is importing the standard library from a ZIP archive: it works ok as a simple directory, but whenever I try to zip it, initialization fails with the following error:
唯一仍然不起作用的是从ZIP存档导入标准库:它可以作为一个简单的目录工作,但每当我尝试压缩它时,初始化失败并出现以下错误:
Fatal Python error: Py_Initialize: unable to load the file system codec
Is it even possible with latest Python? 甚至可能使用最新的Python? I've googled a lot for it and lots of sources claim that putting correct "python33.zip" near the executable should work.
我已经搜索了很多东西,很多消息来源声称在可执行文件附近放置正确的“python33.zip”应该可行。 Still, my experiments prove otherwise.
不过,我的实验证明不然。 What am I missing?
我错过了什么?
Here's my test code - a minimal console application made by MS Visual Studio 2010, running on Windows XP SP3, with some comments as to what I tried and what are the results: 这是我的测试代码 - 由MS Visual Studio 2010制作的最小控制台应用程序,在Windows XP SP3上运行,并对我尝试的内容和结果有一些评论:
#include "stdafx.h"
#include "python.h"
int _tmain(int argc, _TCHAR* argv[])
{
// calling or not calling Py_SetProgramName doesn't seem to change anything
//Py_SetProgramName(argv[0]);
// python_lib is a directory with contents of python33/Lib
// python_lib.zip is an equivalent ZIP archive with contents of python33/Lib (without any top-level subdirs)
// _scripts.dat is a ZIP archive containing a custom script (hello.py)
//Py_SetPath(L"python_lib;_scripts.dat"); // works fine! (non-zipped standard library, zipped custom script)
Py_SetPath(L"python_lib.zip;_scripts.dat"); // both std library and scripts are zipped - fails with error "unable to load the file system codec" during Py_Initialize()
Py_Initialize();
PyRun_SimpleString("from time import time,ctime\n"
"print('Today is',ctime(time()))\n");
PyRun_SimpleString("import hello"); // runs hello.py from inside _scripts.dat (works fine if Py_Initialize succeeds)
Py_Finalize();
return 0;
}
This problem was recently discovered and documented in Python Issue 20621 . 最近在Python Issue 20621中发现并记录了这个问题。 A fix for it will be released in Python 3.3.5;
它的修复程序将在Python 3.3.5中发布; 3.3.5 release candidate 2 is now available for testing.
3.3.5发布候选人2现在可用于测试。 http://www.python.org/download/releases/3.3.5/
http://www.python.org/download/releases/3.3.5/
Turned out to be some problem with Python 3.3.4. 原来是Python 3.3.4的一些问题。 Installing 3.3.2 or 3.3.3 instead fixes everything instantly.
安装3.3.2或3.3.3而是立即修复所有内容。
Filed this issue on Python's bug tracker: 在Python的bug跟踪器上提到了这个问题:
http://bugs.python.org/issue20852 http://bugs.python.org/issue20852
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