How to evaluate the code object returned by PyParser_SimplePa rseString function?
Gabriel Genellina
gagsl-py2 at yahoo.com.ar
Wed Nov 14 23:25:37 EST 2007
En Wed, 14 Nov 2007 23:20:14 -0300, Borse, Ganesh
<ganesh.borse at credit-suisse.com> escribió:
> Py_CompileString takes the source code from file, isn't it?
> As can be seen from the syntax of this function: PyObject*
> Py_CompileString(char *str, char *filename, int start)
>
> I want to parse the code which is in memory - loaded from database.
> In that case, may I know, how to use the Py_CompileString?
The first argument is the actual source code string, a char*; the filename
argument is only used to generate pretty error messages, you may pass in
some meaningful name or '<string>'.
> If it is mandatory to read from file for this function?
> Reading from file increases startup time of my application.
> So, I was thinking of using PyParser_SimpleParseString, which takes the
> code to be parsed in the "char*" format. Quit suitable to my need.
No, both Py_CompileString and PyParser_SimpleParseString take the same
first argument, a char* with the source code.
> Can I use the output of the function PyParser_SimpleParseString as input
> to PyEval_EvalCode?
Not directly, you must compile the parsed input first. See pythonrun.c for
examples, but you will end duplicating what Py_CompileString already does.
--
Gabriel Genellina
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