Python run a block of code in a background thread immediately

thread_start_immed.py

import threading


def _thread_start_immed(*a, **k):
    """Usage:
    
        @_thread_start_immed("my background thread")
        def t(name):
            import time
            time.sleep(3)
            print(f"Hello from {name}!")
        
        print("Started background thread:", t)
    """
    def start(target):
        t = threading.Thread(target=target, args=a, kwargs=k, daemon=True)
        t.start()
        return t
    return start