Embedded python console and FILE* in python 3.2

Katriel Cohn-Gordon katriel at katriel.co.uk
Mon Aug 8 17:31:20 CEST 2011


Is the `code` module (http://docs.python.org/library/code.html) an
insufficiently exact copy of an interpreter for you?

On Mon, Aug 8, 2011 at 4:17 PM, Francis Labarre
<mephisto_9000 at hotmail.com>wrote:

>  Hello everyone,
>
> I'm currently trying to port some embedded code from python 2.7 to python
> 3.2.
>
> The current code replicate the basic behavior of the python interpreter in
> an
> MFC application. When a command is entered in our embedded interpreter,
> we write it to a FILE* then transform this FILE* into a Python file with
> the api
> function PyFile_FromFile and assign it to python's stdin. We also assign
> another
> FILE* as python's stdout and stderr. We then call PyRun_InteractiveOne to
> execute
> the statement as the python interpreter normally would. Finally, we
> can easily retrieve
> the result of the execution from the output FILE*.
>
> This is currently the only approach we have found that allows us to
> retrieve the
> result of executing a statement exactly as the interpreter would.
>
> The problem is that the implementation of files has changed in python 3 and
> the function
> PyFile_FromFile has been removed.
>
> Does anyone knows a way to achieve the same thing as this function either
> trough the io module
> or the python/C api? Or could there be a better approach to what we are
> trying to achieve?
>
> Keep in mind that we need to obtain the result of any statement, i.e. :
>
> If the command is "2+2" the result should be "4", if the command is "1/0"
> the result should be
>
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> ZeroDivisionError: division by zero
>
>
> Thank you,
>
> F.L.
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
>
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