_warnings was importing itself to get an attribute. That's bad if warnings gets
called in a thread that was spawned by an import itself.
Last part to close #1665206.
diff --git a/Misc/NEWS b/Misc/NEWS
index 3d2b492..f5e280c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,8 @@
Core and Builtins
-----------------
+- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
+
- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
the end sys.path, for compatibility with the system install of Python.