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Issue #15489: Add a __sizeof__ implementation for BytesIO objects.

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Patch by Serhiy Storchaka.
This commit is contained in:
Antoine Pitrou 2012-07-30 00:01:44 +02:00
commit 57911f6c1a
3 changed files with 26 additions and 0 deletions
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12
Modules/_io/bytesio.c
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@ -834,6 +834,17 @@ bytesio_init(bytesio *self, PyObject *args, PyObject *kwds)
return 0;
}
static PyObject *
bytesio_sizeof(bytesio *self, void *unused)
{
Py_ssize_t res;
res = sizeof(bytesio);
if (self->buf)
res += self->buf_size;
return PyLong_FromSsize_t(res);
}
static int
bytesio_traverse(bytesio *self, visitproc visit, void *arg)
{
@ -876,6 +887,7 @@ static struct PyMethodDef bytesio_methods[] = {
{"truncate", (PyCFunction)bytesio_truncate, METH_VARARGS, truncate_doc},
{"__getstate__", (PyCFunction)bytesio_getstate, METH_NOARGS, NULL},
{"__setstate__", (PyCFunction)bytesio_setstate, METH_O, NULL},
{"__sizeof__", (PyCFunction)bytesio_sizeof, METH_NOARGS, NULL},
{NULL, NULL} /* sentinel */
};