remove second await in ast_await, fixes custom-components#643, custom…

…-components#673

custom_components/pyscript/eval.py

@@ -2020,10 +2020,7 @@ async def ast_formattedvalue(self, arg):
 
     async def ast_await(self, arg):
         """Evaluate await expr."""
-        coro = await self.aeval(arg.value)
-        if coro:
-            return await coro
-        return None
+        return await self.aeval(arg.value)
 
     async def get_target_names(self, lhs):
         """Recursively find all the target names mentioned in the AST tree."""

tests/test_unit_eval.py

@@ -1406,6 +1406,15 @@ def bar():
 """,
         ["bar"],
     ],
+    [
+        """
+async def func():
+    return 42
+
+await func()
+""",
+        42,
+    ],
 ]