automatically connect Mac to Bluetooth headphones

airpods.py

#!/usr/bin/env python
# jm8wx 11/2/20

import subprocess
import re

airpods_name = "Jack’s AirPods Pro"

def _color(s):
    return "\033[94m" + s + "\033[0m"

def _run_cmd(cmd_str):
    result = subprocess.check_output(cmd_str, shell=True)
    return result.decode("utf-8").strip()

def main():
    # blueutil documentation: https://github.com/toy/blueutil
    # (1) search for named device (must be paired already)
    paired_devices = _run_cmd("blueutil --paired")
    airpods_re = f"^.+(?:{re.escape(airpods_name)}).+$"
    airpods = re.search(airpods_re, paired_devices)
    if not airpods:
        print(f"Could not find headphones with name {airpods_name}. Found devices: {paired_devices}")
        exit()
    else:
        # (2) get device ID
        hex_re = r"(?:[A-Za-z0-9]{2}-?){6}" # get device ID, like 3c-4d-be-06-c4-09
        airpods = airpods.group(0)
        headphone_id = re.search(hex_re, airpods)
        headphone_id = headphone_id.group(0)
        # (3) connect to device
        print(f"Connecting to {_color(airpods_name)}, device ID {_color(headphone_id)}")
        pairing_output = _run_cmd(f"blueutil --connect {headphone_id}")

if __name__ == "__main__": main()