Cache firmware version when connecting to hub.

neohub.py

@@ -3,14 +3,18 @@
 
 import asyncio
 import json
+import logging
 
 class NeoHub:
     def __init__(self):
+        self._logger = logging.getLogger('neohub')
+        self._firmware_version = 0
         pass
 
 
     async def connect(self, host='Neo-Hub', port='4242'):
         self._reader, self._writer = await asyncio.open_connection(host, port)
+        self._firmware_version = await self._firmware()
 
 
     async def send(self, message):
@@ -20,10 +24,21 @@ class NeoHub:
 
         data = await self._reader.read(4096)
         json_string = data.decode('utf-8')
+        self._logger.debug(f"Received message: {json_string}")
         return json.loads(json_string)
 
+    def firmware(self):
+        return self._firmware_version
 
     async def firmware(self):
+        return self._firmware_version
+
+    async def _firmware(self):
+        '''
+        NeoHub firmware version
+        '''
+
         message = {"FIRMWARE": 0}
         result = await self.send(message)
-        return result['firmware version']
+        firmware_version = int(result['firmware version'])
+        return firmware_version

test.py

@@ -3,8 +3,11 @@
 # SPDX-FileCopyrightText: 2020 Andrius Štikonas <andrius@stikonas.eu>
 # SPDX-License-Identifier: LGPL-3.0-or-later
 
+
 import asyncio
 import neohub
+import logging
+
 
 async def run():
     hub = neohub.NeoHub()
@@ -12,4 +15,6 @@ async def run():
     result = await hub.firmware()
     print(f"Firmware: {result}")
 
+
+logging.basicConfig(level=logging.DEBUG)
 asyncio.run(run())