fix typo

pyheatpump/config.py

@@ -52,7 +52,6 @@ config.read(filenames=CONFIG_FILES)
 API_HOST=config.get('api', 'host')
 API_PORT=config.get('api', 'port')
 
-mac_address_init()
 
 def save_config():
     with open(CONFIG_FILES[-1], 'w') as conf_file:
@@ -77,6 +76,7 @@ def mac_address_init():
     logger.info(f'Got new mac address {addr}')
     return addr
 
+mac_address_init()
 
 def get_config_dict():
     c = config