Bump to 2.2.2

Author: asvetlov

CHANGES.rst

@@ -1,6 +1,11 @@
 Changes
 =======
 
+2.2.2 (2017-07-03)
+------------------
+
+- Allow `await session.close()` along with `yield from session.close()`
+
 2.2.1 (2017-07-02)
 ------------------
 

aiohttp/__init__.py

@@ -1,4 +1,4 @@
-__version__ = '2.2.1'
+__version__ = '2.2.2'
 
 # This relies on each of the submodules having an __all__ variable.
 

aiohttp/helpers.py

@@ -66,6 +66,11 @@ def __iter__(self):
         self._awaited = True
         return self._coro.__iter__()
 
+    if PY_35:
+        def __await__(self):
+            self._awaited = True
+            return (yield from self._coro)
+
     def __del__(self):
         self._coro = None
         if not self._awaited: