Issue #2377: Make importlib the implementation of __import__().
importlib._bootstrap is now frozen into Python/importlib.h and stored
as _frozen_importlib in sys.modules. Py_Initialize() loads the frozen
code along with sys and imp and then uses _frozen_importlib._install()
to set builtins.__import__() w/ _frozen_importlib.__import__().
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index a2fb1d9..47e8c8f 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -187,7 +187,7 @@
static char *kwlist[] = {"name", "globals", "locals", "fromlist",
"level", 0};
PyObject *name, *globals = NULL, *locals = NULL, *fromlist = NULL;
- int level = -1;
+ int level = 0;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "U|OOOi:__import__",
kwlist, &name, &globals, &locals, &fromlist, &level))