Cope with Coroutine missing from typing module in Python3.5.

Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com>
ros2 · Mar 11, 2019 · fe04fe2 · fe04fe2
1 parent 670872b
commit fe04fe2
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/launch/launch/actions/opaque_coroutine.py b/launch/launch/actions/opaque_coroutine.py
@@ -17,7 +17,12 @@
 import asyncio
 import collections.abc
 from typing import Any
-from typing import Coroutine
+try:
+    from typing import Coroutine
+except ImportError:
+    # Coroutine is missing from the typing
+    # module in Python pre-3.6
+    from collections.abc import Coroutine
 from typing import Dict
 from typing import Iterable
 from typing import List