diff --git a/src/aiofiles/base.py b/src/aiofiles/base.py
index 410c057..35b26d2 100644
--- a/src/aiofiles/base.py
+++ b/src/aiofiles/base.py
@@ -23,7 +23,7 @@ def __repr__(self):
     async def __anext__(self):
         """Simulate normal file iteration."""
 
-        if (line := await self.readline()):
+        if line := await self.readline():
             return line
         raise StopAsyncIteration
 
@@ -62,10 +62,6 @@ async def __aenter__(self):
 
     async def __aexit__(self, exc_type, exc_val, exc_tb):
         await get_running_loop().run_in_executor(
-            None,
-            self._obj._file.__exit__,
-            exc_type,
-            exc_val,
-            exc_tb,
+            None, self._obj._file.__exit__, exc_type, exc_val, exc_tb
         )
         self._obj = None