Issue #15424: Add a __sizeof__ implementation for array objects.
Patch by Ludwig Hähne.
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index 641e283..2d4ee72 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -1510,6 +1510,19 @@
an array of some other type.");
+static PyObject *
+array_sizeof(arrayobject *self, PyObject *unused)
+{
+ Py_ssize_t res;
+ res = sizeof(arrayobject) + self->allocated * self->ob_descr->itemsize;
+ return PyLong_FromSsize_t(res);
+}
+
+PyDoc_STRVAR(sizeof_doc,
+"__sizeof__() -> int\n\
+\n\
+Size of the array in memory, in bytes.");
+
/*********************** Pickling support ************************/
@@ -2077,6 +2090,8 @@
tobytes_doc},
{"tounicode", (PyCFunction)array_tounicode, METH_NOARGS,
tounicode_doc},
+ {"__sizeof__", (PyCFunction)array_sizeof, METH_NOARGS,
+ sizeof_doc},
{NULL, NULL} /* sentinel */
};