Clarification welcome on examples/ble_standalone.py

[DurvalMenezes]

Hi,

I've a question re: this specific line:

ble-serial/examples/ble_standalone.py

Line 23 in 3f1a619

ble = BLE_client(ADAPTER, 'ID')

Re: the string 'ID' being passed as the 2nd parameter, I checked the corresponding source:

ble-serial/ble_serial/bluetooth/ble_client.py

Lines 9 to 13 in 3f1a619

	def __init__(self, adapter: str, id: str = None):
	self._send_queue = asyncio.Queue()
	self.adapter = adapter

I'm no Python expert but as far as I can see, absolutely nothing is being done with this argument.

My questions are:

1. Is my understanding above correct, and that parameter currently has no use?
2. If so, why is it there? As a placeholder for future use?

TIA!

[Jakeler]

Hi @DurvalMenezes,

1. Yes, correct
2. Because both client and server classes share the same abstract interface:
   

   ble-serial/ble_serial/bluetooth/interface.py

   Lines 3 to 5 in 3f1a619

   	class BLE_interface(ABC):
   	@abstractmethod
   	def __init__(self, adapter: str, instance_identifier: str):

   
   This makes it really easy to switch between roles, all other scripts can stay the same. Actually in the client this param defaults to None so you call it just with BLE_client(ADAPTER). It's only required and used in server mode.