[Python-Dev] Improve Python for embedding (original) (raw)
Thomas Heller theller at python.net
Mon Dec 22 14:28:24 EST 2003
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I find the current situation when 'embedding' Python rather unsatisfying.
Careful preparation (hacking?) of environment variables is needed to avoid that Py_Initialize() takes the default actions needed for the standard Python interpreter (for example, to avoid the default sys.path).
A suggestion from /F on c.l.p was to change pythonw.exe so that instead of hiding all output to stderr a console window would be opened to show the tracebacks. This requires to construct an object with a 'write' method doing all this magic, and it must be done after the call to Py_Initialize() and before PyRun_SimpleFile(). Now, looking at the code of Py_Main(), it seems impossible without rewriting most of the code.
Possible improvements I currently can think of are:
Provide a function like Py_InitializeEx(), which accepts parameters specifying an initial sys.path, optimize flag, verbose flag, and so on.
Split Py_Main() into 2 functions Py_Main_Prepare() and Py_Main_Run(), or let Py_Main() accept a callback function which will be called jsut after Py_Initialize() has been run.
I'm not ready to write a PEP, but if there are people sharing this feeling I would suggest we create a wiki entry somewhere acting as a temporary brainstorming area.
Thomas
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