Accepting request 664408 from home:scarabeus_iv

Revert to tornado 4.5 to fix salt

OBS-URL: https://build.opensuse.org/request/show/664408
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-tornado?expand=0&rev=94

asyncio.patch

@@ -0,0 +1,51 @@
+From: Benjamin Drung <benjamin.drung@cloud.ionos.com>
+Date: Thu, 15 Nov 2018 16:18:51 +0100
+Subject: [PATCH] Add support for Python 3.7
+
+---
+ tornado/gen.py               | 3 +--
+ tornado/queues.py            | 1 -
+ tornado/test/asyncio_test.py | 3 ++-
+ 3 files changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/tornado/gen.py b/tornado/gen.py
+index 99f9106..bdb32ff 100644
+--- a/tornado/gen.py
++++ b/tornado/gen.py
+@@ -482,9 +482,8 @@ class WaitIterator(object):
+         self.current_future = done
+         self.current_index = self._unfinished.pop(done)
+ 
+-    @coroutine
+     def __aiter__(self):
+-        raise Return(self)
++        return self
+ 
+     def __anext__(self):
+         if self.done():
+diff --git a/tornado/queues.py b/tornado/queues.py
+index 0041a80..141c539 100644
+--- a/tornado/queues.py
++++ b/tornado/queues.py
+@@ -253,7 +253,6 @@ class Queue(object):
+         """
+         return self._finished.wait(timeout)
+ 
+-    @gen.coroutine
+     def __aiter__(self):
+         return _QueueIterator(self)
+ 
+diff --git a/tornado/test/asyncio_test.py b/tornado/test/asyncio_test.py
+index d0e3f2b..ae9125f 100644
+--- a/tornado/test/asyncio_test.py
++++ b/tornado/test/asyncio_test.py
+@@ -46,7 +46,8 @@ class AsyncIOLoopTest(AsyncTestCase):
+         if hasattr(asyncio, 'ensure_future'):
+             ensure_future = asyncio.ensure_future
+         else:
+-            ensure_future = asyncio.async
++            # async is a reserved word in Python 3.7
++            ensure_future = getattr(asyncio, "async")
+ 
+         x = yield ensure_future(
+             asyncio.get_event_loop().run_in_executor(None, lambda: 42))