Loading modules from files through C++

[Stefan Behnel]

Roland Plüss, 17.05.2014 15:00:
> On 05/17/2014 01:58 PM, Stefan Behnel wrote:
>> Roland Plüss, 17.05.2014 02:27:
>>> I'm using Python in an embedded situation. In particular I have to load
>>> python scripts through a memory interface so regular python module
>>> loading can not be used. I got working so far a module loader object
>>> I've added using C++ to sys.meta_path . Now I'm totally stuck at the
>>> finally loading step.
>>>
>>> I've got this a C++ loader method "load_module(fullname)" which does
>>> load the requested module script files into a null-terminated string. I
>>> know that "load_module" has to return the module PyObject*. But I can't
>>> get the python source in the c-string into a module PyObject*.
>>> [...]
>>> Can anybody help how in gods name one is supposed to create a module
>>> from an in-memory c-string when called from within load_module (or
>>> anywhere)?
>> Looks like you want to implement a SourceLoader:
>>
>> https://docs.python.org/3.4/library/importlib.html#importlib.abc.SourceLoader
>>
>> I recommend implementing this in Python code instead of C code, though.
>> Much easier. Cython can help with the integration between both.
>
> That doesn't work in 2.x, doesn't it?

Is there a reason you have to use Py2?

Anyway, PEP 302 predates Py3 by a couple of years:

http://legacy.python.org/dev/peps/pep-0302/

Stefan