throttle()

Creates a function that is restricted to execute `func` once per `wait` milliseconds.

Implementation

Parameters: func: Callable[[Any], R] The function to throttle. wait: int The number of milliseconds to wait. Returns: Callable[[Any], R] A new function that wraps `func`, ensuring it is only called once per `wait` milliseconds.

Example

                            def print_time():
    print(time.time())
throttled = throttle(print_time, 1000)
throttled()  # Prints time
throttled()  # Does nothing
time.sleep(1)
throttled()  # Prints time
                        

Expected output: Function that executes at most once per second

Source Code

                        def throttle(func, wait):
    last_called = 0.0
    last_result = None
    wait_s = wait / 1000.0
    def wrapper(*args, **kwargs):
        nonlocal last_called, last_result
        now = time.time()
        if now - last_called > wait_s:
            last_called = now
            last_result = func(*args, **kwargs)
        return last_result
    return wrapper
                    