I want to fill an Str() string from a C function. But I think I am using the
wrong structure (PyBytesObject). I have written a C function to dump the
Python class but as you can see the structure I'm using does not match the
data in the class.
Can someone please tell me the correct structure:
--------- Python snip ---------
class _vendorRecord_2:
vendorListNumber = str()
vendorNumber = str()
vendorName = str('x' * 20)
vendorRecord_2 = _vendorRecord_2()
print(len(vendorRecord_2.vendorName))
print(vendorRecord_2.vendorName + '|')
XBaseDump_PythonString(py_object(vendorRecord_2.vendorName))
--------- C function --------
#define MS_NO_COREDLL
#undef _DEBUG
#include <W:\Python-3.5.1\Include\python.h>
DSI_DLL void CALL_TYPE XBaseDump_PythonString( PyBytesObject *pBytesObject )
{
printf( "ob_size = %d, ob_shash = %X, ob_sval = %s\n",
pBytesObject->ob_base.ob_size, pBytesObject->ob_shash, pBytesObject->ob_sval
);
printf( "offsetof(ob_size) = %d, offsetof(ob_sval) = %d\n", offsetof(
PyBytesObject, ob_base.ob_size ),
offsetof( PyBytesObject, ob_sval ) );
printf( "sizeof(PyBytesObject) = %d\n", sizeof(PyBytesObject) );
DsmDumpBytes( pBytesObject, 32 );
}
-------- output ------------
20
xxxxxxxxxxxxxxxxxxxx|
ob_size = 20, ob_shash = 70768D53, ob_sval = σsci
offsetof(ob_size) = 8, offsetof(ob_sval) = 16
sizeof(PyBytesObject) = 20
0000: 03 00 00 00 60 B0 DC 1D 14 00 00 00 53 8D 76 70 ....-...........
0016: E5 73 63 69 00 00 00 00 78 78 78 78 78 78 78 78 V...............
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
https://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
