Solve issue 1400 at least in part -- whenever we run Python code, at the end
we also flush stderr and stdout. (XXX this may override errors if there's a problem
flushing.)
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 14fe783..f95ea83 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -1442,6 +1442,28 @@
return ret;
}
+static void
+flush_io(void)
+{
+ PyObject *f, *r;
+ f = PySys_GetObject("stderr");
+ if (f != NULL) {
+ r = PyObject_CallMethod(f, "flush", "");
+ if (r)
+ Py_DECREF(r);
+ else
+ PyErr_Clear();
+ }
+ f = PySys_GetObject("stdout");
+ if (f != NULL) {
+ r = PyObject_CallMethod(f, "flush", "");
+ if (r)
+ Py_DECREF(r);
+ else
+ PyErr_Clear();
+ }
+}
+
static PyObject *
run_mod(mod_ty mod, const char *filename, PyObject *globals, PyObject *locals,
PyCompilerFlags *flags, PyArena *arena)
@@ -1453,6 +1475,7 @@
return NULL;
v = PyEval_EvalCode(co, globals, locals);
Py_DECREF(co);
+ flush_io();
return v;
}
@@ -1485,6 +1508,7 @@
if (v && flags)
flags->cf_flags |= (co->co_flags & PyCF_MASK);
Py_DECREF(co);
+ flush_io();
return v;
}