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POHow can I load and execute python script in C++ application
 

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  1. POHow can I load and execute python script in C++ application
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    <p>I want to extend my application, which is written in C++ using python scripts (extensions). I originally wanted to use TCL for that, just like they do in xchat, for example, but later I decided to use python, because it seems to be quite popular for whatever reasons.</p> <p>However, I am failing to load and execute even very simple python script. I followed <a href="http://docs.python.org/2/extending/embedding.html" rel="nofollow">http://docs.python.org/2/extending/embedding.html</a></p> <p>When I give a filename of script that I want to load as argument to <code>pName</code>, the error I get from <code>PyErr_Print</code> is: ImportError: Import by filename is not supported.</p> <p>Reading the documentation, I figured I might need to run <code>PyImport_ExecCodeModule</code>, however this C function requires 2 arguments, 1 is char * (probably a name of module), other one is compiled python code, which according to docs I can get by calling python function <code>compile()</code>. Unfortunately it doesn't say how do I call this python function using C api's in my C++ code. Ideally I would imagine to do something like</p> <pre><code>PyObject *code = PyCompile("print (\"hello :)\""); </code></pre> <p>but I couldn't find any function like PyCompile, neither any other C-api function that would simply allowed me to execute python internal function (like compile) and grab its output as <code>PyObject</code>.</p> <p>So, question is: how can I easily load a python script from a file (something.py) and execute it within my application using the embedded python interpretor?</p>
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    1. COCan you show the C++ code you wrote to embed python?
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      1. POHow can I load and execute python script in C++ application
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    2. CO@SethMMorton the code is pretty similar to what is in example on linked page, in fact I am getting the same error if I just compile the C code on the page, that means: I compile http://docs.python.org/2/extending/embedding.html#pure-embedding and create the example multiple python script, then calling the "call multiply multiply 1 2" returns the mentioned error: ImportError: Import by filename is not supported.
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    3. CO* in fact the error is returned when I do call ./multiply multiply 2 4 when I do just call multiply multiply 2 4 I get ImportError: No module named multiply ANYWAY - I want to be able to load the script from a given file
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