async driver: fix incorrect timeout handling

pykirdy/driver/kirdy_async.py

@@ -625,7 +625,7 @@ class Kirdy:
     async def _read_response(self):
         try:
             response = await asyncio.wait_for(self._reader.read(1024), self.timeout)
-        except TimeoutError:
+        except asyncio.exceptions.TimeoutError:
             return {
                 "msg_type": "Internal Timeout"
             }
@@ -645,12 +645,10 @@ class Kirdy:
             self._writer.write(bytes(json.dumps(cmd), "UTF-8"))
             await self._writer.drain()
             response = await self._read_response()
-            try:
             if response["msg_type"] == "Acknowledge":
                 return response
-            except:
             retry += 1
-                await asyncio.sleep(0.25)
+            await asyncio.sleep(0.1)
         raise NoAckRecv
 
     async def _send_cmd_handler(self, target, cmd, data=None):
@@ -681,10 +679,8 @@ class Kirdy:
             self._writer.write(bytes(json.dumps(cmd_dict), "UTF-8"))
             await self._writer.drain()
             response = await self._read_response()
-            try:
             if response["msg_type"] == "Acknowledge":
                 return response
-            except:
             retry += 1
             await asyncio.sleep(0.1)
         raise NoAckRecv