Embedding Python
Marcin Krol
mrkafk at gmail.com
Tue Jul 1 12:07:49 EDT 2008
Carsten Haese wrote:
> python_code is a C string containing the raw bytes from your pyc file.
> Casting that to a PyObject pointer will not magically transform it into
> a Python code object.
<scratching my head> well yeah, I kind of didn't think that through..
A pyc file contains the following:
>
> 1) An 8 byte header containing a magic number.
> 2) A "marshal" serialization of the code object.
>
> So, in order to transform those contents into a code object, you need to
> skip the 8 byte header and an unmarshal the rest. Basically, replace the
> line above with something like this:
>
> codeobj = PyMarshal_ReadObjectFromString(python_code+8, size-8);
> mainobj = PyImport_ExecCodeModule("multiply", codeobj);
>
> where codeobj is of type (PyObject *).
>
> Once that works, add magic number checking and exception handling to taste.
Thanks. That's exactly what I was looking for.
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