Potential issue with System Exclusive messages

[dayunbao]

I'm sending MIDI messages over USB from a Pico to code running on a USB host. The USB host is using Mido to handle all incoming and out going MIDI messages. The issue is that this is how Mido is interpreting the System Exclusive data:

sysex data=(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,125,19,3)

when I'm sending the data like this:

async def record(self):
        # A wrapper around a SysEx message to start recording.
        device_id = self.module_id
        command_id = self.RECORD_COMMAND_ID
        data = [self.MANUFACTURER_ID, device_id, command_id]
        self.midi_handler.send(
            SystemExclusive(
                manufacturer_id=self.MANUFACTURER_ID,
                data=data,
                )
        )

I had to add the manufacturer ID byte to data because otherwise it's lost completely.

Mido is seeing the bytes in data as a tuple of 128 ints. Why is this happening? Is this a bug, or something I'm doing wrong.

Thanks.