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List: pykde
Subject: [PyQt] Leak in MappedType code?
From: Nyall Dawson <nyall.dawson () gmail ! com>
Date: 2018-01-28 8:20:40
Message-ID: CAB28Asi4K1qtL6ZHtU7x6xH81JV4Gw7=1LgXZ9RN3Gziikwo7g () mail ! gmail ! com
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Hi list,
I'm seeing a leak when using the MappedType code for a class based on
QVector< QVariant >. The code in question is almost an exact copy of
the PyQt QVector code:
%ConvertFromTypeCode
// Create the list.
PyObject *l;
if ( ( l = PyList_New( sipCpp->size() ) ) == NULL )
return NULL;
// Set the list elements.
for ( int i = 0; i < sipCpp->size(); ++i )
{
QVariant *v = new QVariant( sipCpp->at( i ) );
PyObject *tobj;
if ( ( tobj = sipConvertFromNewType( v, sipType_QVariant,
sipTransferObj ) ) == NULL )
{
Py_DECREF( l );
delete v;
return NULL;
}
PyList_SET_ITEM( l, i, tobj );
}
return l;
%End
Using sip 4.19.5, Qt 5.9.2 and Python 3.6.3 I see a leak with this
code - yet with the exact same code on Qt 4.7 and Python 2.7.14 I see
no leak.
Any idea what's happening here?
Nyall
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