bpo-36763: Add _Py_InitializeMain() (GH-13362)
* Add a private _Py_InitializeMain() function.
* Add again _PyCoreConfig._init_main.
* _Py_InitializeFromConfig() now uses _init_main to decide
if _Py_InitializeMainInterpreter() should be called.
* _PyCoreConfig: rename _frozen to pathconfig_warnings, its value is
now the opposite of Py_FrozenFlag.
* Add an unit test for _init_main=0 and _Py_InitializeMain().
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 3d83044..bc131fd 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -1046,6 +1046,15 @@
* Py_Main() based one.
*/
_Py_UnhandledKeyboardInterrupt = 0;
+
+ /* Set globals['__builtins__'] if it doesn't exist */
+ if (globals != NULL && PyDict_GetItemString(globals, "__builtins__") == NULL) {
+ PyInterpreterState *interp = _PyInterpreterState_Get();
+ if (PyDict_SetItemString(globals, "__builtins__", interp->builtins) < 0) {
+ return NULL;
+ }
+ }
+
v = PyEval_EvalCode((PyObject*)co, globals, locals);
if (!v && PyErr_Occurred() == PyExc_KeyboardInterrupt) {
_Py_UnhandledKeyboardInterrupt = 1;