preen

aiohttp/http_writer.py

@@ -174,22 +174,16 @@ async def write_eof(self, chunk: bytes = b"") -> None:
             chunks.append(flush_chunk)
 
             if self.chunked:
-                self._writelines(
-                    (
-                        f"{chunks_len:x}\r\n".encode("ascii"),
-                        *chunks,
-                        b"\r\n0\r\n\r\n",
-                    )
-                )
+                chunk_pre = f"{chunks_len:x}\r\n".encode("ascii")
+                self._writelines((chunk_pre, *chunks, b"\r\n0\r\n\r\n"))
             elif chunks_len and len(chunks) == 1:
                 self._write(chunks[0])
             elif chunks_len:
                 self._writelines(chunks)
         elif self.chunked:
             if chunk:
-                self._writelines(
-                    (f"{len(chunk):x}\r\n".encode("ascii"), chunk, b"\r\n0\r\n\r\n")
-                )
+                chunk_pre = f"{len(chunk):x}\r\n".encode("ascii")
+                self._writelines((chunk_pre, chunk, b"\r\n0\r\n\r\n"))
             else:
                 self._write(b"0\r\n\r\n")
         elif chunk: