For some reason the coverage fails, but only on Python 3.9...

Author: wolph

_python_utils_tests/test_aio.py

@@ -30,7 +30,13 @@ async def async_gen():
         yield 2
         yield 3
 
+    async def empty_gen():
+        if False:
+            yield 1
+
     assert await acontainer(async_gen) == [1, 2, 3]
     assert await acontainer(async_gen()) == [1, 2, 3]
     assert await acontainer(async_gen, set) == {1, 2, 3}
     assert await acontainer(async_gen(), set) == {1, 2, 3}
+    assert await acontainer(empty_gen) == []
+    assert await acontainer(empty_gen()) == []

python_utils/aio.py

@@ -48,7 +48,7 @@ async def acontainer(
 
     item: _T
     items: types.List[_T] = []
-    async for item in iterable_:
+    async for item in iterable_:  # pragma: no branch
         items.append(item)
 
     return container(items)