On 8/8/2011 11:17 AM, Francis Labarre wrote:
Hello everyone,
I'm currentlytrying 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.
The source for the function is still available in 2.7. You might be able
to adapt it to work in 3.x.
IDLE imitates the interactive interpreter by running code in a separate
non-console pythonw process. There have been issues with getting that to
work right on Windows (see issue 12540), but it works well when it does.
Depending on your use case, this might work for you too. Communication
is through (wrapped) OS pipes, not normal Python file objects.
--
Terry Jan Reedy
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