Fix a typo in asyncio-dev.rst. (GH-10133)

miss-islington · benjaminp · web-flow · commit f2b5b4f2594e · 2018-10-26T10:42:49.000-07:00
"threadsafe" (cherry picked from commit 4e3a53b) Co-authored-by: Benjamin Peterson <benjamin@python.org>
diff --git a/Doc/library/asyncio-dev.rst b/Doc/library/asyncio-dev.rst
@@ -50,7 +50,7 @@ When the debug mode is enabled:
   <asyncio-coroutine-not-scheduled>` and logs them; this mitigates
   the "forgotten await" pitfall.
 
-* Many non-treadsafe asyncio APIs (such as :meth:`loop.call_soon` and
+* Many non-threadsafe asyncio APIs (such as :meth:`loop.call_soon` and
   :meth:`loop.call_at` methods) raise an exception if they are called
   from a wrong thread.
 
