add _testcapi.raise_memoryerror to make test_exceptions.test_MemoryError simpler
diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index 95c2dd1..5ce76f1 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -593,9 +593,10 @@
# PyErr_NoMemory always raises the same exception instance.
# Check that the traceback is not doubled.
import traceback
+ from _testcapi import raise_memoryerror
def raiseMemError():
try:
- "a" * (sys.maxsize // 2)
+ raise_memoryerror()
except MemoryError as e:
tb = e.__traceback__
else:
diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 3ee3bf4..494937a 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -971,8 +971,19 @@
+
+/* reliably raise a MemoryError */
+static PyObject *
+raise_memoryerror(PyObject *self)
+{
+ PyErr_NoMemory();
+ return NULL;
+}
+
+
static PyMethodDef TestMethods[] = {
{"raise_exception", raise_exception, METH_VARARGS},
+ {"raise_memoryerror", (PyCFunction)raise_memoryerror, METH_NOARGS},
{"test_config", (PyCFunction)test_config, METH_NOARGS},
{"test_list_api", (PyCFunction)test_list_api, METH_NOARGS},
{"test_dict_iteration", (PyCFunction)test_dict_iteration,METH_NOARGS},