asyncio, Tulip issue #136: Add get/set_debug() methods to BaseEventLoopTests.
Add also a PYTHONASYNCIODEBUG environment variable to debug coroutines since
Python startup, to be able to debug coroutines defined directly in the asyncio
module.
diff --git a/Doc/library/asyncio-eventloop.rst b/Doc/library/asyncio-eventloop.rst
index f056cac..04b182b 100644
--- a/Doc/library/asyncio-eventloop.rst
+++ b/Doc/library/asyncio-eventloop.rst
@@ -553,6 +553,22 @@
    Set the default executor used by :meth:`run_in_executor`.
 
 
+Debug mode
+----------
+
+.. method:: BaseEventLoop.get_debug()
+
+   Get the debug mode (:class:`bool`) of the event loop.
+
+.. method:: BaseEventLoop.set_debug(enabled: bool)
+
+   Set the debug mode of the event loop.
+
+.. seealso::
+
+   The :ref:`Develop with asyncio <asyncio-dev>` section.
+
+
 Server
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