echuraev opened a new pull request, #17190:
URL: https://github.com/apache/tvm/pull/17190
In case of cython when we create a set function for property then the
following code will be generated:
```
static int __pyx_setprop_4test_9TestClass_handle(PyObject *o, PyObject *v,
CYTHON_UNUSED void *x) {
if (v) {
return __pyx_pw_4test_9TestClass_6handle_3__set__(o, v);
}
else {
PyErr_SetString(PyExc_NotImplementedError, "__del__");
return -1;
}
}
```
And when we call operator `del` for this handler, then the memory will be
released and operator `__set__` will be called for NULL object. In this case an
exception that operator `__del__` is not implemented will be generated. To
avoid this problem we need to declare `__del__` function for each property
where we define operator `__set__`.
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